The reason for why I am asking, is that Karl Popper writes in one of his book that the difference between someone being rational and not irrational is based upon ethics.

If women then are less rational than men, then that would mean that they have an ethical deficiency in comparison to men.

The way I see it, is that men far outnumber women in selfless acts. Men date down, women date up. Men are soldiers, firefighters, scientist and what have you.

Am I wrong in what I think?