I'm sure it's been said before, but I think you might find that a lot of the discriminatory behaviour is a direct
result of conditioning that occurs throughout our lives. You know, the blue/pink baby clothes, the toys we get,
the little two yr old girl pushing a miniture pram along side her mom (who is pushing a big pram)...
Because we're conditioned like this from a very young age (and we tend to pass these attitudes on), I don't see those people changing overnight or even for the next few generations. After all, you can't easily dictate to a parent how (s)he is going to teach their child.