I think the Lib Dems, Greens, Plaid and SNP are all worse than Labour on this issue and my worry is that if there is a coalition then the things the different partners all agree on are likely to get done as a matter of priority, i.e. self ID.
I've been a Lib Dem voter for most of my adult life but they are completely down the rabbit hole on this issue. They have actually said, "If you don't agree TWAW, don't vote for us." (Well, fine, I won't!) That says a lot about what their priorities are. One of their councillors seems to spend her whole life on Twitter scolding people for "misgendering" convicted rapists, ffs. They sold their voters down the river over tuition fees and I stopped voting for them for a while because of that, then I gave them a second chance after Brexit because they were the only party taking a clear anti Brexit position. But that's done now, they failed to move the dial even one iota, now all this trans nonsense, there's absolutely no point in voting for them.
I'd like to vote Green but they're no better on this issue, and in any case, in the last election the only candidates in my constituency were Tory, Lib Dem and Labour.
I think I would prefer to see Labour win an outright majority if there's absolutely no chance of the Tories staying in power, simply because then Labour can do what they want to do rather than needing to negotiate with the Lib Dems or other small parties. Yes, that probably does still mean self ID. But there's an outside chance that if enough shit hits the fan between now and the election, they'll quietly dial down their position on this issue and maybe delay it for a bit. I do think the Tories are the only party that really does understand electoral arithmetic, and that there are a lot more women who need single sex spaces and don't want to be referred to as people with cervixes than there are trans people. But after the Tories, I think Labour are the most likely to understand this point, and I don't think they actually want to come to power after nearly 15 years of Tory rule and then immediately do something which makes them about as popular as Nicola Sturgeon is right now. Parties like the Lib Dems and the Greens don't worry about that because they've never won an election and never will, so they can afford to take an ideological position rather than a practical one.
I hate to say this, because it's genuinely awful, but the most helpful thing right now would be for more evidence to come to light of women being harmed by trans women.