The 1707 Act of Union between Scotland and England was described by Daniel Defoe as one "of policy" and "less [a] union of affection". The author of Robinson Crusoe was arguing that the economic benefits for both countries were what sustained the Union. Last week, Alex Salmond was inadvertently trying to reverse this settlement. But if he proved anything, it was not that there is a policy-based case for independence, rather that he deems such issues to be esoteric.

One of the big economic arguments unveiled last Tuesday to entice Scots to vote for separation was to acquire "economic levers" such as corporation tax, which they would subsequently reduce by 3% in order to undercut the UK rate. This 3% cut, the SNP claims, would increase productivity by over 1% and create 27,000 jobs after 20 years. So vote Yes in 2014 and then wait 20 years.

Even if you ignore the moral arguments about a race to the bottom in corporation tax, or that Joseph Stieglitz, one of the Scottish government's own economic advisors opposes the idea, or the fact that this modelling was based on a 3% reduction when the UK rate at the time was 26%, or the fact that the British government now plans to cut the main rate of corporation tax to 20% by 2015, the idea that 27,000 jobs after 20 years, around the same amount of time it took to build the Taj Mahal, is some sort of economic lever worth ending a 300-year-old Union for is clearly absurd.

This is best highlighted when you consider the economic problems facing Scots. For example, in the past fortnight we’ve seen that unemployment in Scotland stands at around 199,000, which is greater than the population of Dundee, Scotland’s fourth largest city. The dole queue in Scotland is so long that if it was assembled in one straight line it could stretch from Edinburgh to Glasgow. The suggestion that voting for independence in 2014, so that by 2034 this figure would still continue to be larger than the population of Dundee is simply laughable.

It is not surprising to discover that unemployment, not independence, is the top concern among Scots in numerous polls. In Scotland, as in most parts of the UK, constitutional issues like referendums, rank low among most voters’ concerns. Well-respected pollsters like Peter Kelner have observed that separatism is a "minority passion north of the border".

Only at the start of the year, the Scottish Social Attitudes Survey found support for independence at its lowest since devolution – it’s barely changed since. In fact, support for independence is so low that when separatist campaigners get even within 10 points of the opposite camp, not only do the SNP see this as a "boost" but they also send out a press release. I honestly can’t imagine any other mainstream party highlighting the fact they are so far behind their rival in a political race.

Nevertheless, when one considers that Scottish public’s opinion on separation has barely moved any further in the last 12 months than it has in the previous 168, it becomes clear that the divide between the people and the political class in Scotland could not be any further apart. All the referendum is doing is providing a Scotch Mist that conceals the real issues afflicting Scots.

20 years from now, if the referendum outcome is as all the polls suggest, Scots will not look back and count the 27,000 jobs announced last week. They will instead wonder why, when their country’s politicians were confronted by a city’s worth of unemployed Scots, they chose to ignore the public’s main policy concern and focus on their antipathy towards the Union.

James Mills is a Labour researcher and led the Save EMA campaign