Are you willing to admit that women may be better at verbal skills and nurturing skills? Women also seem to be better at task that can be mutinous but require a lot of concentration, you know things like driving a race car at 200mph two inches from the car in front of you for three solid hours.

There is much reason to believe the different sexes have different strengths and weakness then there is to believing it comes down to sit or stand in the bathroom.

There is no problem with admitting that men on average tend to do better then women in math the problem comes if you take that to mean girls shouldn’t be taught math or assume that specific boy is going to be better then a specific girl simply because of sex. The difference is probably small enough that girl does need to be much above average for a girl to be above average for a boy as well. You can argue with that is because of society or biology but you really can’t move beyond the argue point and there is not much beyond desire to support the society argument.