Anyway I was mainly responding to
@Asclepius who accused me of bias based on the fact I said I'd never met a woman who actually felt threatened by trans women in sports or changing rooms - but then admitted immediately that they didn't know any women who felt threatened by this stuff either! Which I thought was just obvious and amusing hypocrisy and makes the original criticism a complete red herring.
I will however concede that I overstated it by saying anyone needs to know women
personally who feel threatened by trans women in whatever situations, I shouldn't have used that word.
I do think it's necessary to have some reason to believe, based on things that
women have actually said, that a significant proportion of women actually genuinely feel threatened by trans women, and not only that, but
for reasons that make sense.
Someone point me to some women who have spoken about or written about why it's threatening to have trans women in changing rooms or sports, for reasons that are not based on obviously prejudicial, easily disproven ideas, like, trans women are more likely to be sexually violent, predators, or the like, and I'll reconsider my position based on that.
The primary reasons I think it just isn't that important are that the reasons given that trans women shouldn't be allowed in woman-only spaces are usually not explained beyond "they're potentially a threat to women", but I don't see any evidence that shows they're MORE of a threat than certain biological women, or just biological men who decide not to respect women's spaces already. There's also the reasoning that some minority of women would be made to feel uncomfortable, but this is essentially the same argument because their reasons for feeling uncomfortable appear to be a circular justification based on the first pseudo-explanation, and associated myths.
It's not nice to make people uncomfortable of course, but it's important
why they're uncomfortable - is it because this apocryphal scary trans person
looks too much like a man, or what? Most of the time I think this just boils down to a pre-rational dislike of trans people generally, rather than any considered or defensible position. How many trans women are assaulting kids or biological women in changing rooms? Does anyone who feels strongly about this topic even know, off the top of their head? I doubt it. And for those that do know, or who can look it up, what does that number look like when compared to biological women being assaulted or harassed in women's spaces by biological men?
To be clear, though. I'm not saying that all women's spaces need to accept all trans women at all times, with no caveats. There are exceptions. I remember reading about a domestic violence survivors support group where a visibly masculine trans woman who essentially just looked like a man started coming to sessions, which many of the existing members felt deeply uncomfortable about. I understand this, of course. There's nuance in these arguments. I just find the cliched talk about changing rooms and women's sports to be some of the worst examples of places trans women should be excluded from as a general rule, although again, I'm not saying there aren't some edge case scenarios where certain women's spaces should be solely for biological women, again I think this stuff really needs to be assessed on a case by case basis. But the changing room shit is just almost always poorly argued and often based on little more than prejudice... IMHO.