I thought about writing separate articles about how gender roles are bullshit, how gender is a binary, and how transgender people are sexist, but I decided to just put all those truths into one article, because all these erroneous ideas stem from the same error: trying to change the definition of gender.
Gender is which role a given human body is able to fill in the process of reproduction.
Before I end this article, I know somebody is going to throw some statistics at my last sentence up there and say "but looky here I've got facts and facts trump philosophy". I could just point out that citations have to take a back seat to actual reasoning, but instead I'm going to explain how your stats might very well be true: it's a self-fulfilling prophecy. We were all taught gender roles as kids, even if only implicitly, and people act the way they're raised to think is normal for them. And there you have it: any statistics you're using to show that males and females really do have different psychology is adequately explained by the prevalence of the belief you're using them to argue for. Note that while many political liberals claim to oppose gender roles, they usually still welcome the idea that there are biologically-caused differences in psychology between men and women; so yes, it is a prevalent belief.