Im saying that its biologically healthy to look at a young attractive person (of your preferred gender) and go “Yep, I would really like to do things with that person” It is however societaly problematic to be a perv in trying to make it happen and does raise some awkward questions about what a guy is really looking for if he wants to be with someone half his age.
As for the sexist stuff online. You ever seen some womens wishlists on dating sites? Now I aint saying shes a gold digger… but you know the rest of it.