It the most significant move on Brexit in politics since Theresa May appointed the Three Musketeers of Brexit – Boris Johnson, Liam Fox and David Davis – to top cabinet positions.

Chuka Umunna has now pinned his theses to the front door of the Labour’s HQ by announcing that Britain and especially London must stay in the single market and customs union in order to preserve foreign investment and economic activity.

And Umunna has shown real leadership in making clear – politely, in his non-abrasive and inclusive manner – that the endorsement of the Tory-Ukip line that Brexit means leaving the single market and the customs union cannot and should not be sustained as Labour policy once the election is over.

Jeremy Corbyn knows very little about the technical details of Europe. He has subcontracted European policy to lawyers who end up with the self-contradictory policy of wanting the benefits of the single market (they’re unsure on the customs union) while advocating putting up barriers to fellow European citizens living or working here.

Corbyn’s statement that free movement will end and be replaced by “managed migration” is Labour’s version of Boris Johnson’s having your cake and eating it. This is what all Labour’s sister parties in Europe have rejected – namely that the UK can cherry-pick the bits of Europe it wants but have an exception on other common rules and laws the EU27 agree to live by.

Boris Johnson and Chuka Umunna clash over Brexit

Now Umanna and other London Labour MPs have cut that Gordian knot by recalling Nye Bevan’s maxim that the “language of priorities is the religion of socialism.”

Umunna is prioritising jobs, investment, trade, and the economy over the obsession with immigration. Four per cent of Ireland’s population is Polish, a far higher share of the Irish population than the Poles in Britain. 1.2 million Romanians live and work in Spain, which has a population of 38 million. You can scour the Irish or Spanish press or read all the speeches of Irish and Spanish politicians and you will not find the kind of ranting hate against European citizens in our midst that has been the norm in England this century.

Enoch Powell elevated anti-immigrant populism to the top of the political agenda nearly five decades ago. It was stamped on hard by the political and media class but once the immigrants became white Catholic Europeans from the late nineties onwards it was possible to use all the Powellite tropes again – and every Conservative leader from William Hague onwards did so, with increasing support from the Europhobe press.

In short, the hate against immigrants that won the Brexit vote last June is a made-in-England political project that other countries with far more European immigrants have avoided.

Instead of falling into the Ukip-Tory trap of aping their demands for physical Cold War era controls on citizens of 27 EU member states like work and residence permits, seasonal or regional allocations or cruelly saying a worker cannot live with a spouse and children, Umunna is pointing out that there are many ways within single market rules to control immigration.

UK General Election 2017 Show all 47 1 /47 UK General Election 2017 UK General Election 2017 12 June 2017 British Prime Minister Theresa May leaves 10 Downing Street for the 1922 committee on June 12, 2017 in London, England. British Prime Minister Theresa May held her first cabinet meeting with her re-shuffled team today Getty Images UK General Election 2017 12 June 2017 DUP leader Arlene Foster stands alongside deputy leader Nigel Dodds as they hold a press conference at Stormont Castle as the Stormont assembly power sharing negotiations reconvene following the general election on June 12, 2017 in Belfast, Northern Ireland. Discussions between the DUP and the Conservative party are also continuing in the wake of the UK general election as Prime Minister Theresa May looks to form a government with the help of the Democratic Unionist parties ten Westminster seats. Stormont and the political situation in Northern Ireland has been in limbo following the collapse of the power sharing executive due to the Renewable Heat Incentive scheme scandal which implicated the DUP Getty Images UK General Election 2017 12 June 2017 Priti Patel, International Development Secretary leaves 10 Downing Street Getty Images UK General Election 2017 12 June 2017 Larry the Downing Street cat runs ahead of Michael Fallon Britain's Secretary of State for Defence as he arrives for a cabinet meeting at Downing Street in London, Britain, June 12, 2017. REUTERS/Stefan Wermuth REUTERS UK General Election 2017 12 June 2017 Michael Gove, Environment Secretary leaves 10 Downing Street on June 12, 2017 in London, England. British Prime Minister Theresa May held her first cabinet meeting with her re-shuffled team today Getty Images UK General Election 2017 12 June 2017 Scottish National Party Leader Nicola Sturgeon (C) leaves after speaking to the media in Parliament Square. Getty Images UK General Election 2017 12 June 2017 British Prime Minister Theresa May (C, L) holds the first Cabinet meeting of her new team. Getty UK General Election 2017 11 June 2017 British Prime Minister Theresa May attends church in her constituency with her husband Philip May, a few days after disappointing results in a general election. Rex Features UK General Election 2017 9 June 2017 Leader of the Labour Party Jeremy Corbyn leaves Labour Party HQ this morning, following a general election yesterday. Parliament is hung, with no individual party gaining an overall majority. Post general election reaction. Rex UK General Election 2017 9 June 2017 BELFAST, NORTHERN IRELAND - JUNE 09: DUP leader and Northern Ireland former First Minister Arlene Foster (C) holds a brief press conference with the DUP's newly elected Westminster candidates who stood in the general election Getty Images UK General Election 2017 9 June 2017 A " Get May Out" demo took place opposite the gates of Downing Street, calling for May to resign, after the shock election results and Mays coalition with the DUP. Rex Features UK General Election 2017 9 June 2017 A demonstrator wears a mask depicting Britain's Prime Minister and leader of the Conservative Party Theresa May, poses with a mock gravestone bearing the words "Hard Brexit, RIP", during a protest photocall near the entrance 10 Downing Street in central London AFP/Getty Images UK General Election 2017 9 June 2017 Britain's Prime Minister Theresa May arrives at the Conservative Party's headquarters in London Reuters UK General Election 2017 9 June 2017 Britain's Prime Minister and leader of the Conservative Party Theresa May flanked by her husband Philip delivers a statement outside 10 Downing Street in central Londo Getty UK General Election 2017 9 June 2017 Britain's Prime Minister and leader of the Conservative Party Theresa May leaves Buckingham Palace in London the day after a general election in which the Conservatives lost their majority Getty Images UK General Election 2017 9 June 2017 A TV cameraman watches the door of 10 Downing Street in London Getty Images UK General Election 2017 9 June 2017 Labour leader Jeremy Corbyn is greeted by his Office Director Karie Murphy as he arrives at Labour Party HQ in Westminster, London, after he called on the Prime Minister to resign, saying she should 'go and make way for a government that is truly representative of this country' Dominic Lipinski/PA Wire UK General Election 2017 9 June 2017 Britain's Prime Minister Theresa May arrives at the Conservative Party's headquarters with her husband Philip in London REUTERS/Peter Nicholls UK General Election 2017 9 June 2017 Ukip leader Paul Nuttall speaks during a press conference at Boston West Golf Club where he announced that he is standing down as party leader Joe Giddens/PA UK General Election 2017 9 June 2017 Ruth Davidson, leader of the Scottish Conservatives, leaves the counting centre for Britain's general election with her partner Jen Wilson in Edinburgh, Scotland REUTERS/Russell Cheyne UK General Election 2017 9 June 2017 Scottish Labour leader Kezia Dugdale celebrates with candidate for Edinburgh South Ian Murray as he retains his seat at the Meadowbank Sports Centre counting centre in Edinburgh, Scotland Getty Images UK General Election 2017 9 June 2017 First Minister Nicola Sturgeon speaks to the media at the Emirates Arena in Glasgow, as counting is under way for the General Election Andrew Milligan/PA Wire UK General Election 2017 9 June 2017 Scottish Conservative leader Ruth Davidson at Meadowbank Sports Centre in Edinburgh, as counting is under way for the General Election PA UK General Election 2017 9 June 2017 Scottish National Party (SNP) leader Nicola Sturgeon reacts at the Emirates Arena in Glasgow, Scotland EPA UK General Election 2017 9 June 2017 Jeremy Corbyn, leader of Britain's opposition Labour Party, arrives at the Labour Party's Headquarters in London REUTERS/Marko Djurica UK General Election 2017 9 June 2017 UKIP Leader Paul Nuttall leaves in a car following the vote count for the constituency of Boston and Skegness in Boston, England Anthony Devlin/Getty Images UK General Election 2017 9 June 2017 British Prime Minister and Conservative Party leader Theresa May speaks at the declaration at the election count at the Magnet Leisure Centre in Maidenhead, England. Getty Images UK General Election 2017 8 June 2017 A policer officer enters a polling station in London AP UK General Election 2017 8 June 2017 A woman leaves after casting her vote at the Hove Museum and Art Gallery near Brighton, in southern England Getty UK General Election 2017 8 June 2017 A polling station sign is seen on a telephone box outside the polling station at Rotherwick Hall, west of London Getty UK General Election 2017 7 June 2017 A woman walks past a general election display in the window of a betting shop in Camden on June 7, 2017 in London, United Kingdom. Britain goes to the polls tomorrow, Getty Images UK General Election 2017 7 June 2017 Britain's Prime Minister Theresa May visits Atherley Bowling Club during an election campaign visit on June 7, 2017 in Southampton, England. Britain goes to the polls tomorrow June 8 to vote in a general election. Getty Images UK General Election 2017 6 June 2017 A supporter wears a pair of Jeremy Corbyn decorated tights at a general election campaign event in Birmingham, central England, on June 6, 2017. Britain goes to the polls on June 8 to vote in a general election only days after another deadly terror attack in the nation's captial. AFP/Getty Images UK General Election 2017 6 June 2017 A picture taken in London, shows election leaflets from various parties displayed ahead of the United Kingdom's general elections. Britain goes to the polls on June 8 to vote in a general election only days after another terrorist attack on the nation's capital AFP/Getty Images UK General Election 2017 6 June 2017 Election workers, George Gaunt and Luca Tragid deliver the first ballot boxes, on the Royal Mile in Edinburgh AFP UK General Election 2017 6 June 2017 British Prime Minister Theresa May meets with Conservative party supporters during an election campaign visit to a bakery during an election campaign visit on June 6, 2017 in Fleetwood, north-west England. Britain goes to the polls on June 8 to vote in a general election only days after another terrorist attack on the nation's capital Getty Images UK General Election 2017 5 June 2017 British Prime Minister Theresa May speaks during a general election campaign visit to a removals depot in Edinburgh AFP/Getty Images UK General Election 2017 3 June 2017 Pro-Independence supporters hold a march through Glasgow AFP/Getty Images UK General Election 2017 3 June 2017 Opposition Labour Party leader Jeremy Corbyn campaigns for the upcoming general election in Beeston, Nottinghamshire AFP/Getty Images UK General Election 2017 3 June 2017 Labour leader Jeremy Corbyn reacts to supporters after a rally at Beeston Youth and Community Centre as he visits the East Midlands during the final weekend of the General Election campaign on June 3, 2017 in Nottingham, England. If elected in next week's general election Mr Corbyn is pledging to create a million new jobs and to scrap zero-hours contracts Getty Images UK General Election 2017 1 June 2017 Scottish Conservative and Unionist Party leader Ruth Davidson joins a selection of Scottish Conservative election candidates and activists during campaigning on May 1, 2017 in South Queensferry, Scotland. With only seven days to go until the general election on June 8th, polls are showing the SNP out in front and the Conservatives set to close in on Labour. Getty Images UK General Election 2017 29 May 2017 Prime Minister Theresa May canvasses in Richmond with Conservative candidate Zac Goldsmith on May 29, 2017 in London, United Kingdom. After suffering defeat in the London Mayoral election Zac Goldsmith resigned over the Government's position on Heathrow expansion. He stood as an Independent but lost in a by-election to the Liberal Democrats. Britain goes to the polls on June 8 to elect a new parliament in a general election Getty Images UK General Election 2017 22 May 2017 Liberal Democrat leader Tim Farron poses for a selfie taken by carer April Preston during a General Election campaign visit to the Barlow Medical Centre, in Didsbury, Manchester Yui Mok/PA UK General Election 2017 22 May 2017 Britain's Prime Minister Theresa May speaks at an election campaign event in Wrexham, Wales Reuters UK General Election 2017 22 May 2017 Britain's main opposition Labour Party leader Jeremy Corbyn, and Labour's former deputy Prime Minister, John Prescott, exit the party's general election campaign 'battle' bus as they arrive at an event in Kingston upon Hull, northern England Getty Images UK General Election 2017 22 May 2017 Britain's main opposition Labour Party leader Jeremy Corbyn walks with supporters between venues, before speaking again at another general election campaign event in Kingston upon Hull, northern England Getty Images UK General Election 2017 22 May 2017 An anti-fox hunting protester is taken away and arrested by police outside the venue where Britain's Prime Minister Theresa May was due to launch the Welsh Conservative general election manifesto at Gresford Memorial Hall in the village of Gresford, near Wrexham, North Wales, on May 22, 2017. Britain goes to the polls on June 8 to elect a new parliament in a general election AFP/Getty Images

The best way is to promote jobs for British citizens. Freedom of movement does not apply to state employment. But Britain refuses to train enough doctors, nurses and other medical staff so 140,000 Europeans work in the NHS and care sectors looking after us.

Identity cards are the uncontroversial norm in all EU member states, some with much stronger libertarian traditions than we have, and their existence ensures an employer cannot hire someone without knowing who he she is. The EU directive on agency workers could be rigorously enforced to stop the mass hiring of Eastern European workers via gangmaster employment agencies.

It is perfectly permissible to limit access to benefits until such time as a newly arrived worker has made appropriate contributions and, as Chuka Umunna pointed out on the Today programme, it is legal under EU rules to deport someone who has not found work after three months.

If Nick Timothy gets his way and Theresa May adopts an Erdington vision of workplace relations after the election, he will know that trade unions in Birmingham’s metal-bashing industries played a key role in partnership with employers in hiring practices and sought to help local workers in their communities.

Loading....

These internal controls on immigration can be put in place in full conformity with staying in the single market. Chuka Umunna has shown real intellectual and political leadership. He almost certainly speaks for many more Labour MPs than dare join him now, for all LibDem and SNP MPs and for more Tory MPs who also realise that leaving the Single Market and Customs Union is quite crazy but do not yet know how to say so in public.