We'll have to agree to differ then. You seem to have decided on the way things should be and are looking for evidence. I'm not convinced, I think you're denying that men and women like different things. Look at hobbies, pass-times, reading matter etc. things that where there is little outside influence from society, males and females have different preferences. So where did these societal expectation come from in the first place? Why are they so consistent across time and cultures.