A person should feel good about how [they] was born
Ideally, sure, but that's not always possible and telling people that they're not allowed to be trans doesn't stop them from being trans, it only alienates them.
Those procedures ARE psychologically beneficial care and are mostly NOT dangerous, unlike whatever torturous conversion therapy equivalent you seem to have in mind.
Yeah, spreading medical misinformation rooted in bigotry and ignorance tends to have negative consequences when amongst people who know better. Funny how that works.