In case you spent the weekend on Planet Tharg, I got into a little ‘incident’ on Bill Maher’s “Real Time” show.

In short, a coarse Australian comedian named Jim Jefferies told me to ‘F**K OFF!’ on live television.

In fact, he screamed it at me several times and flipped the bird at me too.

Then, Harry Potter author JK Rowling launched a spectacular, equally foul-mouthed Twitter assault on me by way of support for Jefferies, who is notorious for making ‘jokes’ about rape and missing children.

My crime?

I dared to suggest that liberals are losing their minds so hysterically over Donald Trump that they have lost all sense of proportion or even basic reason.

Particularly in relation to two aspects of his turbulent three-week presidency:

First, he’s not the new Hitler.

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A little 'incident': Australian comedian Jim Jefferies told Piers Morgan to 'F**K off!' on live television during Bill Maher's 'Real Time' show

When Piers said on Real Time there was no Muslim ban, all hell broke loose; ‘This is the hysteria I’m talking about. 85% of the world’s Muslims are allowed in the country.’

Second, he’s not trying to implement a ‘Muslim ban’ in America.

These aren’t contentious claims, they’re just facts.

The Hitler analogy is not just inaccurate, it is also deeply, outrageously offensive.

The German dictator ordered the murder of 12 million people, including the systematic extermination of six million Jews.

Hitler had his victims shot, gassed, starved, tortured and burned in concentration camps and was one of the most evil genocidal maniacs in history.

And he started a world war which killed even more millions.

Donald Trump, so far as I am aware, hasn’t murdered anyone.

So to compare him to Hitler, as many on the left are currently doing, is a disgusting slur that also serves to diminish the scale, horror and importance of the Holocaust.

As for the so-called ‘Muslim ban’, President Trump’s controversial Executive Order proposes a very specific suspension of anyone coming into America from seven terror-ravaged countries.

Grow up: JK Rowling (pictured left on Sunday) launched a Twitter assault on Piers for suggesting liberals were losing their minds over Donald Trump, while Meryl Streep (pictured right on Saturday), warned that the new President would take us to nuclear war

JK Rowling said it was 'satisfying' to see Piers Morgan be sworn at, in a tweet that was retweeted thousands of times - and sparked a row with the man himself

Piers criticized JK Rowling for agreeing with free speech until someone refuses to agree with her and called her a liberal

The same seven countries, in fact, that his predecessor President Obama had already identified as most in need of extra attention from US security and immigration officials.

Yes, it is true they are predominantly Muslim countries.

But there are many more predominately Muslim countries against which there is NO restriction.

And yes, it is also true Trump did initially, and wrongly, call for a short-term suspension of all Muslims coming into the US after the San Bernardino terror attack by Islamic extremists in 2015.

But this EO does not call for that and it would apply to anyone from those seven countries, regardless of colour, age, gender or creed.

So, although I vehemently disagree with the way this EO was set up and executed (as I wrote here), and expect it to be radically changed and re-presented this week, it is simply factually incorrect to label it a Muslim ban.

However, when I said this on Real Time after Maher used the term, while he was ranting about why Trump can’t be trusted with facts, all hell broke loose.

‘Bill, calm down, there is no Muslim ban,’ I stated. ‘This is the hysteria I’m talking about. 85% of the world’s Muslims are allowed in the country.’

Jefferies snapped. ‘Oh f**k off!’ he screamed, ‘F**K OFF! THERE IS A F**KING MUSLIM BAN!’ Then he flipped me the bird.

‘This is what you do, Piers,’ he sneered. ‘You say, “He hasn’t done this, he hasn’t done that, he’s not going to do all these things, give him a f**king chance mate.” Hitler didn’t kill the Jews on the first day, he worked up to it.’

As the audience whooped with joy, I calmly responded: ‘This is exactly the kind of hysterical over the top nonsense that makes people like you look ridiculous. He is not the new Hitler.’

Social media exploded, just as the studio audience had exploded.

During the debate on Maher, Jefferies (pictured) snapped: ‘This is what you do, Piers. You say, “He hasn’t done this, he hasn’t done that, he’s not going to do all these things, give him a f**king chance mate.” Hitler didn’t kill the Jews on the first day, he worked up to it.’

There’s nothing, after all, that caring, sharing, tolerant liberals love more than one of their own telling someone to ‘F**K OFF!’ because they don’t slavishly embrace their erroneous political statements.

Which is especially ironic given how ferociously exercised they all are about President Trump’s own erroneous political statements.

The following morning, JK Rowling entered the fray: ‘Yes, watching Piers Morgan being told to f**k off on live TV is exactly as satisfying as I’d always imagined,’ she tweeted to her 9 million followers, who include many young impressionable minds that like her books.

‘That’s why I’ve never read a single word of Harry Potter,’ I replied, the second part of which is true as I find the whole idea of fantasy wizard books mind-numbing anathema.

Ms Rowling, who loudly urged everyone to vote Remain in the UK’s European Union Referendum and then to vote for Hillary Clinton in the US election, reacted badly to my jibe, perhaps as a consequence of her unsuccessful year.

Or maybe she is trying to earn back Brownie points in Scotland where she is widely loathed having urged people not to vote for independence a couple of years ago.

‘Because you had a premonition that one day the author would roar with laughter at seeing you called out for your bulls**t on live TV?’ she spat back.

‘Everything I said was factual,’ I replied. ‘If you think screaming ‘F**K OFF!’ at me changes that, then you’re mistaken.’

I dread to think what this haughty dame of Tinseltown has got lined up for the Oscars. In fact, I dread to think what the whole night’s going to be like

Then I added: ‘The superior, dismissive arrogance of rabid Remain/Clinton supporters like JK Rowling is, of course, precisely why both campaigns lost.’

Ms Rowling, whose sense of political and cultural self-importance is staggeringly overblown for a woman who writes about Hogwarts and Muggles, didn’t like that either.

‘The fact-free, amoral, bigotry-apologism of celebrity toady Piers Morgan is, of course, why it’s so delicious to see him told to f**k off,’ she raged.

Then she tweeted me again with a veiled threat: ‘If only you’d read Harry Potter, you’d know the downside of sucking up to the biggest bully in school is getting burned alive.’

Ooh-err! How terrifying!

‘No bigger bullies right now than the shrieking, hysterical anti-Trump celebrity brigade,’ I retorted.

For the rest of the day, members of that same brigade, led by Chelsea Clinton and the guy who played Sulu in Star Trek, raced to support their heroine.

I was also bombarded with vicious, scornful abuse and ugly, hateful threats from foaming liberals who hate Trump because…. of the vicious, scornful, abusive, ugly, hateful, threatening way they say he talks and behaves.

It was very similar to the appallingly arrogant, and ultimately self-defeating ‘we know better than these Neanderthals!’ crap the same types of demented people spewed out during the EU Referendum and US presidential campaigns.

The day ended with Meryl Streep launching another awards show attack against President Trump, following her sneering, snobbish, elitist diatribe at the Golden Globes.

This time she solemnly warned he’d take us into nuclear war.

Me-Me-Me-Meryl’s a great actress but she’s rapidly turning into the world’s most crashing Hollywood pseudo-political bore.

I dread to think what this haughty dame of Tinseltown has got lined up for the Oscars. In fact, I dread to think what the whole night’s going to be like, such is the fervent desire by entertainment stars to publicly abuse the President of the United States.

What I don’t understand is why they are doing it?

Did they learn nothing from Brexit and Trump’s election, which surely proved that real people clearly no longer give a stuff what pampered, prima donna celebrities tell them to think about politics or how to vote?

The sad truth about JK Rowling is that the more she has scorned, mocked and abused those who don’t agree with her political views, the worse her preferred options have performed.

She backed Ed Miliband in the last UK election and he was drubbed by David Cameron.

She backed Remain in the EU Referendum, and Brexit won.

Then she threw her losing magic behind Hillary Clinton in the US election, and the ‘most qualified candidate in presidential history’ lost to a real estate tycoon and TV star.

Hillary, like Ms Rowling and Ms Streep, firmly believed in the power of celebrity to sway public opinion, which is why she wheeled out the likes of Madonna, Lady Gaga, Cher, Beyonce and Jay-Z in the weeks before polling day.

This just made the ‘basket of deplorables’ in middle America dislike her even more and vote for the guy who had no celebrity endorsements and had been shunned by Hollywood.

Whether you love or loathe him, President Trump is now delivering on exactly what he promised to do in his campaign and he has every right to do so.

You don’t have to like him, or have voted for him, to respect the fact he won a free, democratic election and to respect the office of the presidency.

I wouldn’t have voted for Trump personally as I don’t agree with him over key issues like gun control and climate change.

And I can understand why his abrasive, bombastic, punchy, ‘un-presidential’ style offends some people.

Nor is he or his administration beyond very justified criticism in numerous areas. The questioning of the legitimacy of the judiciary is particularly concerning.

But the charge that he’s some kind of monstrous Hitler-esque dictator is ridiculous.

Fair-minded Liberals should be able to find common ground over Trump’s avowed intent to reform America’s complex tax code, fix the flawed Obamacare, declare war on crippling bureaucracy, invest hugely in infrastructure, defeat ISIS and bring back jobs outsourced from the US.

They could also find it in their bitter hearts to acknowledge the fact Trump was the first Republican president to speak positively about the LGBTQ community in his inauguration speech.

As for Me-Me-Me-Meryl’s fears of a nuclear war, Trump’s already shown himself to be a surprisingly pragmatic and eminently sensible leader with regard to America’s relations with countries like Japan and China.

So yes, everyone can continue to freak out, throw their toys out of their strollers and march in outraged protest every time Trump tweets, says something politically incorrect, defends his daughter or just breaks wind.

Or they can all just grow up a bit, put America’s interests before their incessant wailing and whining, and yes, ‘give him a f**ing chance, mate’ to prove his theory that a businessman can do a better job of running the country than politicians.

If Trump fails to deliver on Making America Great Again, then he will be voted out in 2020.

That’s how democracy works, folks.

As for JK ‘do as I say’ Rowling, Me-Me-Me-Meryl and the rest of the howling Trump-despising celebrities, to borrow the language of their beloved hero Jim Jefferies, why don’t you all just shut the **** up?