I sometimes, occasionally, dip into this apparently never-ending thread. Series of threads. Which is not meant as a dismissive observation, I think the arguments both sides put down make for interesting reading, when one happens to look in; and, taken in small doses, the back-and-forth sniping can be entertaining, as well!
Me, I'm undecided, really. Earlier on, when there was actually a trans person commenting here, I found myself in her favor, given that here was an actual person who's putting herself out, and all she's asking is we refer to her as a 'she'. So that it seemed somewhat perverse not to accede to her wish. But, and like I said, in the abstract, I'd say I'm undecided. Both sides make compelling enough arguments!
So anyway, I was generally wondering what exactly all of this hoo-haa actually amounts to. How many people actually are trans? No doubt the seasoned debaters on this subject are well aware of this stat, but I was not; and so I looked it up: and apparently the number is less than a percentage point! (Link: https://worldpopulationreview.com/state-rankings/transgender-population-by-state)
That's such a small number, that I'd suggest that, regardless of the merits of the arguments on either side, that tiny number itself makes an argument for accommodation of these folks. Half a percentage point overall, I mean to say! (Although yes, I agree, the argument some make, that there are, or might be, predators out there who misuse the self-ID route in order to, well, get into spaces where they've no business entering, does make sense; and I've no counter-argument to that; like I said I'm undecided on the question. Just, the tiny percentage itself, it seems to me, makes an argument for accommodation these people, regardless of other, more substantial arguments, on either side of the question.)
It's not really a counter argument but there is no reason "self-ID" has to mean "I can call myself a trans woman this minute so I can enter this female toilet and abuse a woman, then step out and now call myself a man".
There is no reason at all that self-ID legislation couldn't be like the GRC approach in the UK i.e. require someone to have lived as their new gender for 2 years.
An issue is that time and time again the discussion is held hostage or hijacked by those "all or nothing" extremists on either end.
I can have sympathy with those that don't want a "medicalised" approach but can't see why that can't be one route someone could go down, if you have gender dysphoria that's the route for you. If you don't have gender dysphoria I do think there should be some route you can go down so you can have your gender changed. I think the having to "live as your new gender" is a good place to start looking at what that route may look like.
Even allowing people to change their gender does not mean that we have to be blind to what a person's "biological sex" is in all circumstances. All our rights exist in a balance with other people's rights. Think of it akin to our right to freedom of expression - we recognise that is not an absolute right, that there are some circumstances when my right to freedom of expression can be curtailed.