It feels like you keep moving the goalposts and your initial argument was "I have no personal experience with [x] so I don't believe [x] is a thing."

I can't leave links to my life experiences, but as I finish my undergrad I have heard every type of teacher and student maintain that the only differences between men and women are socially constructed. It is common knowledge and thus not really debated. The one time I saw a teacher maintain otherwise, it was a guy in the biology department who was retiring. The class session dissolved into a shouting match between students with the teacher looking on.