So Mythro, what about when it is a choice? What if a predatory man says "I identify as a woman" to get put on a female hospital ward then rapes someone? What if a 13yo girl thinks she identifies as a boy because tik tok/peer group/school sex ed lessons tell her she is one if she has short hair and stereotypically masculine interests, gets her breasts cut off and her voice irreversibly deepened, then with maturity realises it was all nonsense and she's just a non-typical woman who was led down a path as an impressionable child?
How are we meant to tell who is "really" trans when the only evidence is someone saying "I'm trans"? Can you not see the dangers with this?
And why does having a "gender identity" that contrasts with your sex mean you should be considered a different sex for the purposes of same-sex spaces or even passports and medical records? Your body has a sex, that doesn't change, so why can't you just be male or female with a feminine or masculine identity/personality (like what some of us have been doing for decades without a fuss)?
And what has "sex is spectrum" got to do with it? It's really not, but if it was, so what? Age, ethnicity, height, disability, these are all really spectrums. So that should mean you can identify as black if you're white, disabled if you're not, 6 if you're 53, right? Because these things are all much more of a spectrum that sex is? And how can you tell someone's age, race or disability isn't genuine - after all it also comes from neurochemicals in their brain, as do all our thoughts?