See here. If you go to the main article cited in the post, you'll find further details. For example, Protestants are significantly more opposed to transgenderism than Catholics are.
As I've said before, most Americans are highly persuadable on issues like these. But the large majority of parents, pastors, and others in positions of influence aren't making much of an effort to persuade people on these matters, if they even address the issues at all. Our priorities are desperately false, our time management is horrendous, and we're often intellectually apathetic, if not anti-intellectual.