You might think the title above is nonsense: how can a Remainers vote for No Deal? I would have agreed with you a month ago. But since then I have noticed many so called Remainers saying that people cannot possibly vote for Labour in the forthcoming General Election because Labour, or Corbyn and his advisors, are pro-Brexit. These are the Remainers who are trying to persuade you to vote for No Deal.
Anyone who gives the matter a seconds thought will realise that Brexit is impossible under a Labour government. I may have understood this sooner than most but it is not hard. As soon as you see that the Conservative party is (because of Farage and their Brexiter MPs) bound to No Deal, you can also see that Corbyn could never get any kind of Brexit through parliament, unless it was a form of Brexit designed to be lost in a referendum to end the Brexit process.
The key point is that the Tories will vote against any kind of soft Brexit. The only MPs who might vote for a soft Brexit are the minority of Labour MPs that want it and maybe a few Tory MPs that don’t want No Deal and are prepared to defy their leader. Even if it went to a referendum, the combination of No Deal Brexiters and Remainers will easily triumph over a soft Brexit. Under a Labour government Brexit is dead, whatever Labour’s leader might think.
In many ways, a Labour government is the best way to end Brexit. If it goes to a referendum, it will be Remain against a soft form of Brexit, which is what should have happened after the 2016 referendum. That is a much safer referendum than Remain versus No Deal. In fact a Labour government is probably the only way Brexit can be sure to end, as Johnson even as the leader of a minority government will never agree to end Brexit, and may still try to force us to crash out.
As a result, those who say (like the leader of the LibDems) that people cannot vote for Labour because Labour are not led by a Remainer are either dishonest or haven't understood that Labour cannot achieve Brexit. But either way it is an extremely dangerous thing to say, because it is a likely to end up allowing No Deal. If parliament does vote against No Deal every Remainer in the subsequent General Election has to vote tactically.
It means in England voting for LibDem candidates in LibDem/Tory marginals, but it also means voting for Labour candidates in Lab/Con marginals. That is the only clear way a Johnson victory can be stopped. It doesn’t even matter if the Labour MP is pro-Brexit, because every Labour MP deprives the Conservatives of government.
So every Remainer telling you that you cannot vote Labour is telling you to vote for a No Deal outcome. Everyone who says you cannot vote for Labour because “Corbyn is evil” in various ways is telling you to vote for a No Deal outcome. Everyone telling you that you cannot vote Labour because Labour “is an antisemitic party” is telling you to vote for No Deal. And when it comes to a General Election, there will be some who will say you cannot vote Labour because they want Boris Johnson and No Deal to win.