Remainer MPs - couldn't organise a piss-up in a brewery

First write down what you know:

a) My general impression is that a majority of MPs, however slim, are Remainers.

b) We know that the Tories are by far and away the largest party, and with the support of the DUP they have a majority of 1.

c) Jeremy Corbyn thinks that if he can trigger a vote of no confidence, that he will somehow end up as PM. Most Remainer MPs have told him to get stuffed.

Therefore the only workable plan (from a Remainer MP point of view) is to trigger a vote of no confidence. Johnson would clearly lose it, as it would only require a few Tory MPs (i.e. Remainers) to vote against him (let's assume all non-Tory/DUP MPs vote against him) and then MPs have the opportunity to choose a new PM. Those are the rules.

The chosen new PM has to tick two boxes:

a) A Remainer.

b) A Tory (they are the largest party etc).

Remainer MPs - even non-Tory Remainers - would be daft not to vote for him/her, as the alternative is leaving Johnson in place; let's rule out Corbyn as PM, that's not happening. Half of his own MPs wouldn't vote for him. The Lib Dems, SNP et al are all saying "Ooh, avoiding a cliff edge Brexit is the most important issue facing this country today". Well, either it is or it isn't, but if it is, then hold your noses and vote for a Tory.

Tory MPs - even Leavers - would be daft not to vote for him/her, as the alternative would probably be a General Election, which most of them don't want to risk.