If that was actually happening Marge I doubt anyone on the left would be in favor of it. At most you have kids social transitioning at school and hiding it from their parents because they know their parents wouldn't love them for who they are. What you probably think is happening is that teachers and therapists are helping kids start medically transition behind their parents back. Maybe it has happened but somehow I doubt it.
I agree with her on one thing. Leave them alone and let them grow up. If they question their sexuality and gender identity, let them. It is part of growing up.