The ex-prime minister’s call for pro-Europeans to “rise up” came as a poll found the vast majority of voters wanted politicians to get on with quitting.
Mr Blair’s arrogant speech sparked outrage and even some Remain supporters were aghast at his bid to reverse June’s historic decision to leave the European Union.
Respected pollsters ICM revealed that 68 per cent of voters now agreed the Government should “get on with implementing the result of the referendum… and in doing so take back control of our borders, laws, money and trade”.
That was up from 54 per cent in December when people were asked a similar question.
As Mr Blair tries to block Brexit, a new poll reveals voters are demanding to 'get on' with exiting
These figures show how out of touch Tony Blair is with the mood of the country
Significantly, 42 per cent of Remain voters now back swift progress – up from 26 per cent in December.
Mr Blair claimed Theresa May was being rushed by Right-wing Eurosceptics into “Brexit at any cost” when fuller debate was needed on every aspect of the exit deal.
Conservative MP Dominic Raab, of pro-Brexit group Change Britain – which commissioned the poll – said: “These figures show how out of touch Tony Blair is with the mood of the country.
“Far from wanting to reverse the referendum, the overwhelming majority want the result respected and for politicians to get on with making a success of Brexit.
Tony Blair speaking yesterday calling for pro-Europeans to “rise up”
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Mr Johnson called for Brits to 'rise up' against Blair's 'condescending campaign'
“Tony Blair wants to go on putting the question over and over again until he gets a different answer.
“It is the height of arrogance and nothing could be more likely to convince the EU to offer the UK the worst possible deal than his suggestion that the decision could be overturned.”
Earlier former Ukip leader Nigel Farage told his party’s spring conference in Bolton: “Tony Blair clearly hasn’t grasped that if that referendum was held tomorrow the margin would be at least three times bigger than it was in June.
“Blair is yesterday’s man. He’s like the heavyweight world champion who has been retired for a few years but needs a bout to make some money and he comes back and he gets knocked out in the first round.
“And by the end of today Blair will be on the canvas, alright?”
Voters back Theresa May’s plans
Mr Blair’s speech for pro-EU group Open Britain was at the London headquarters of US financial media giant Bloomberg where then Tory prime minister David Cameron in 2013 first promised to negotiate new EU membership terms and hold an in-out referendum.
Former Labour leader Mr Blair said he accepted people voted to leave and there was currently no huge appetite to rethink.
But he said people voted without knowing what Brexit would mean and should be asked at every stage of the complex looming negotiations the Prime Minister is set to trigger by March 31.
Mr Blair added: “Is the pain worth the gain? As these terms become clear it is their right to change their mind.
“Our mission is to persuade them to do so.
“We must, day in day out, articulate the reality: the pain is large and the gain largely illusory.”
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'It can be stopped, if the British people decide that having seen what it means, the pain-gain analysis doesn’t stack up'
He stressed a second referendum was not necessarily needed to show a change of heart as he urged pro-Europeans: “This is not the time for retreat, indifference or despair but the time to rise up in defence of what we believe.”
He claimed Mrs May was already being driven into a damaging “hard Brexit”, that the EU issue would leave her government no time to focus on daily life issues and that the reality would disappoint voters who thought Brexit meant much lower immigration.
Foreign Secretary Boris Johnson, in Munich for a security conference, said: “It really is insulting the intelligence of the electorate to say that they got it wrong.
“Tony Blair is the guy who would have taken our country into the euro with what would have been catastrophic consequences, who dragooned the UK into the Iraq war on a completely false prospectus with consequences which foreign ministers here are still trying to deal with.
“To those who call for the British people to ‘rise up’ against Brexit, I urge the British people to rise up and turn off the TV next time Blair comes on with his condescending campaign.”
Even Lucy Thomas, the former deputy director of the Stronger In campaign, was against Mr Blair
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Leave campaigner and former education secretary Michael Gove said: “Politicians like Tony Blair should respect the result and work with the Government to make a success of Brexit instead of trying to undermine British democracy.”
Fellow Tory former minister and Leave campaigner Iain Duncan Smith said Mr Blair had no right to “come back into British politics and then lecture the British people and bully and cajole them, to tell them that until they make the ‘right’ decision they will keep on being asked the same question.
“His view is that the British people were too stupid to understand the decision they were making, which I find rather arrogant.”
Labour MP and leading Brexit backer Kate Hoey tweeted: “Patronising speech from Tony Blair. Makes me more determined to ensure decision of the British people to Leave is fulfilled.”
Even Lucy Thomas, the former deputy director of the Stronger In referendum Remain campaign, tweeted in response to Mr Blair’s “rise up” call: “Not all former Remain campaigners agree with this. Brexit was democratic vote and need to work for best possible version, not fight it.”