You don't even need to go that far.

https://segm.org/GIDS-puberty-blockers-minors-the-times-special-report

There's a girl in there who they called trans and recommended treatment. The reason? She liked Thomas the tank engine and hated periods. Yeah turns out she was just gay and bullied. Especially when you note the line in there that when the bullying stopped so did the dysphoria.

Therapy is needed because you can be very sure about things when you're sick. Suicidal people want to kill themselves, should we complain that doctors want to give them therapy/medication rather than just handing them a knife and telling them to go for it? Just because you're sure about it doesn't mean you're right, you'll just do something you might regret.