Here in Sweden if you are of the opinion that men and women are biologically different, people will call you "racist", bigot, idiot, and so on.
It is terrifying, difference has somehow become connected to the thought that one gender should be inferior.
Personally i don't care particularly much WHY the sexes are different, we are different that is enough knowledge for me in my life at the moment.
I do however care about people communicating facts that are not based on science.