Transvestism is usually framed as wanting to dress like a member of the other sex. However, there's no such thing as dressing like a woman or dressing like a man. There's only dressing like a particular time and place's idea of a man or a woman.

I assume there's imprinting involved, but as I said, I don't think I understand gender. I'm not completely blind to what's considered normal in my culture, but when I think about it, I find evidence that there's something weird underneath.

It's possible that, if there's imprinting involved, that's part of why none of the standard theories make sense. And I don't have an explanation why human societies (all of them, so far as I know) set up sex roles in such a way that there's something to imprint on.