I agree about the consent/rape point that your making. But to play devil's advocate...How does a child get to decide they are trans or gay at such a young age? How can a child decide they are old enough to take hormones, get procedures done , or be gay if they don't have the mental capacity to make those decisions?Except for the consent aspect. children can't consent because they don't know any better. its rape. Pedo's are rapists
Gay people aren't avocating for legalization of rape as far as i know. a gay person can have a relationship without raping anyone. A pedo can't.
it shouldn't matter anyways, because they shouldn't be sexually active at a young age regardless of their orientation. 
So now thinking about things is tantamount to doing them? 
central for the rest of the world to laugh at.
My win streak on this topic is