Because apparently it's OK to hate on trans people, scapegoat any current issue on this particular demographics, and do everything possible to make their lives as miserable as possible.
You were asking "Why do we need a carve out for one particular group because of their genetic bad luck?". I'm telling you the reason is purely ideological: the right needs scapegoats and trans people are one of the current ones. Doesn't go further than than.
Trans people are explicitly on the receiving end of Republican's bigotry. They are constantly targeted through law and rhetoric, stripped of their rights and demonized at every occasions. Exactly like gay people were a few decades ago.
The Left's position on the issue is "let them be" whilst the Right's "they shouldn't exist".
“Hate”? I think you might be over blowing the word, I’m sorry you feel that way. I think you might have a bit of a negative view and tend to think people are against you when they’re not. To me I see this as all related, it’s all playing into each other. Just chill mate it’s not a good headspace. Maybe reassess what you are defining as hate. Is it you who’s spreading it?