“Some spaces still need to be single-sex regardless of how rigorous someone's transition process has been (also because otherwise that could lead people to undergo unnecessary surgery just to get access to those spaces).”
I disagree with the latter part of this argument: it’s a transactivist argument (yes, I know some human rights groups also make it)
and designed to ensure men who have no intention to transition must always be allowed access to women’s things.
If you look at the Olympics, much was always made of the fact that “trans people” had been allowed to compete in the opposite sex class since 2005, and nobody had taken them up on it and men weren’t dominating women’s sports. That was entirely because, between 2005 and 2015, men had to have undergone surgery to enter (avoiding the correct term for testicular removal as it has led to deletions before).
As soon as all that was required was some hormonal changes, men began to invade, albeit still at low numbers, but that likely would have changed in time.
Women’s need for single sex spaces should be the only consideration here. It might be that we eventually end up with a fudge: that some designated spaces (toilets being the most obvious) are opened up to men who’ve undergone surgery) but the number of those is always going to be so limited that the argument that the impact on women is minimal would genuinely apply.
But for now, though I’m glad to hear Badenoch has raised it, I still think, judging by my LinkedIn feed, that we are still, despite the Supreme Court ruling, a very long way from getting even our most needed women’s spaces back and a million miles away from being able to discuss safely, whether there are a few male medical patients who might eventually be admitted to a limited number of women’s facilities.
I would love to be able to feel women’s rights are sufficiently secure that we could start to talk openly about genuine patients needs, or whether those can, or should, ever be met, in any way other than alternative spaces, but we are nowhere near it.