The Lib Dems are no longer a political party post-coalition. They got reduced from functional third party to practically “Greens” level of MP’s. rebuilding will need them to completely break with anyone who was in bed with Cameron and come up with a message that can be sold to everyone who’s sick of the Tories AND Labour. Good luck with that.
The SNP is closer to a third party than the Libs, and their sole political manifesto seems to be “INDEPENDENCE. FREEEEDERRRRMMM”
It’s not a definite that the majority would vote remain, recent polls put the gap pretty close (and that was the case when the referendum happened, everyone expected a remain result and then egg landed on the face of many a pundit), mind, as of now none of the political parties represent the public, at this point they all seem to be fighting for their own skins which is both amusing and horrifying to watch.
Corbyn is both Labour’s greatest strength and the biggest liability, with him in place they have an actual alternative to the Tories, but at the same time, he’s essentially unelectable. Worse, Labour hasn’t got anyone who could replace him (at least, nobody that Momentum would agree on). The Conservatives are trapped by the Fixed Term Parliament Act, which prevents May from initiating a vote of no confidence herself or attaching it to a vote on something else so she can’t use the “Deal vote” as a way of making it a referendum on her leadership (which is what Major did).
What we could end up with is a Zombie Parliament. One that can’t pass any form of vote that would move EU negotiations to a conclusion but equally one that lacks the numbers to call a general election (due to the fixed term parliament act) and one that isn’t able to force a leadership vote (those pesky 48 letters seem very elusive).