[quote jenny5000]@Fifteentoes I wonder too how many votes this will cost them? I'd like to think that they've alienated 50% of the population who will not vote for them, but I doubt it. Surely they have focus groups and they're following those? I also think KS is terrified of losing the young vote, especially in university towns and cities as well as alienating the captured in his Party. Whatever the reason, you'd think he might have prepared for such questions. They're not going to stop so he needs to sharpen up.
I do think it will cost Labour votes (including mine) but I wonder how many.[/quote]
Yep, and then you've got to consider that the opposite policy would cost some votes too. Coming out firmly against any extension of trans rights, and certainly for repealing or limiting any current provisions, would raise huge howls of transphobia that would contribute further to the perception (already strong) among the left, the young, the urban woke etc, that Starmer is not a genuine left leader but just another Tory in disguise.
The Tories don't have a such a problem with this as their core support is skewed much more towards the older and more socially conservative. There is an important base of socially liberal middle class people who vote Tory for purely economic reasons, but they tend to be more pragmatic and willing to compromise on principles to maintain the one all-important outcome of winning elections. They were generally pro-Remain for example, but still voted Tory in sufficient numbers when, for obviously political/electoral reasons, Johnson threw his weight behind Brexit.