There are multiple reasons. Left wing orgs looking for a new thing to get funding more now that gay marrige was achieved, a LOT of women wanting to fight for smth they think is "good" but it's all about their social credit.
Politicians not knowing anything about the topic snd how deep it goes, just making it their program to get more votes.
Everytime someone advocates for it, it's for their own personal gain. They just get the basic details, ppl wanna kill themselves if they dont get their dick inverting surgery or get to cut off their healthy breast tissue, nevermind that a lot of men have a sissy crossdressing fetish and women are trying to escape womanhood cause they were traumatized one way or another in the past.
The entire atgumrnt that the surgerys helps them falls appart cause getting them actually makes thede suicidal ppl even worse. Ppl transing know this so most of them don't go thru it.
It's a lot of work to for a supposed "minority".