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.
I suspect that you weren't listening very carefully to what people were actually saying.
This isn't a problem, though. This is probably what happens when it turns out the Russian bogeyman was just a fever dream. Indeed, being in a public University in the North East as well as 2 of my 3 concentrations being in the liberal arts, I'm quite used to people ignoring actual fires as they continuously harangue everyone about potential fires.
I cannot see any connection between the second paragraph of your comment and what we're talking about.
The brain is a bit of a red herring here. We know little about the brain -- far too little to be able to draw any conclusions from whatever differences there may be between average male and female brains. We do, however, have reliable behavioral evidence of small cognitive differences between men and women on average. My point was that there are few if any people who deny the existence of such differences.