Gender Affirming Care for minors is by far the most controversial element of the trans rights movement, it's going to get downvotes even on relatively safe places like lemmy.
I think gender affirming care for minors has more support than trans participation in sports, for example.
EDIT:
In 2023 69% of Americans believed trans people should only be able to play on the team of the gender they were assigned at birth, according to this Gallup poll.
In 2024 62% of Americans oppose banning gender affirming care for minors in this Gallup poll.
EDIT2:
It's also a little weird to call gender affirming care for minors a controversial part of a "trans rights movement" when it's primarily supported by the mainstream medical organizations. Of course the trans rights movement wishes to oppose anti-trans legislation to ban such care, but gender affirming care for minors is not a fringe, controversial practice being pushed primarily by trans rights activists.
The evidence is overwhelmingly in favor of providing gender affirming care, and the only "controversy" comes from objections pushed by anti-trans activists who lie, make bad faith arguments, and appeal to pseudo-science and debunked theories to advance their cause.
Things can be both part of a social movement and thoughoughly backed by scientific consensus: see climate change. No offesne was intended in my response.
I figured you didn't intend offense, and I'm not offended - just mulling over your comment and realizing several things struck me as a little wrong upon reflection.
I still think you're probably right overall that the current anti-trans moral panic (and the anti-trans activism that led to it) has resulted in the average American thinking of gender-affirming care for minors as "controversial", and that this average American also probably thinks that gender-affirming care for minors is a part of a trans rights movement.