But you take issue with people calling themselves girls.

This is a total non-issue for you? Can you conceive of the implications here, or how this affects women and girls? Words have definitions and they have power. You have men claiming titles meant for women, positions meant for women, checking off the diversity box meant for women. Reports of bathroom assaults are already documented, no longer theory - people can't raise eyebrows when a male walks into the ladie's room and that makes all the difference. Lesbians are being banned from lesbian spaces for not wanting to have sex with males who think they're women. Children are being told that men can have vaginas and women can have penises with absolutely no clarification that that's not exactly true, just that males and females get cosmetic surgery to look like the opposite sex sometimes. Young boys are getting castrated and put on hormones for picking up dolls, this is the threshold for them being "girls," as if no one's ever heard of a tomboy. I'm not being paranoid, this is literally what's happening. If you don't know this, you're not paying attention.