I believe you are correct that some are connected to actual sexual molestation.
But especially with homosexuality becoming the “I’m friends with a black kid” of the 80’s, some of it is just wanting to be different. And the envirorment.
I think that studies that were done before the normalization by society, may have different outcomes today.
The “normalization” you speak of, is in place to better establish adults, in a position to prey on our children.