Much discussion about this from Ellie-Mae O’Hagan:

Anyone who claims to know “why some people are women and some people are men” is a liar.

Therefore, this man here is a woman because he says so.

Longer excerpt:

“All I care about is the principle of live and let live,” she says fatuously. Oh yes? What if a neighbor moves into her house while she’s off chatting to the BBC, and won’t let her in? What if someone ignores a zebra crossing and runs over her? What if gender critical feminists say men can’t be women?

Never mind, let’s go watch for squirrels.