You are misrepresenting the argument. Nobody claims women can't do math or science. The claim is thy are more interested in people than things. Nursing is about people, not things. So are physical therapists or university professors in some fields. 

And  so is medicine, so now about 50% of medical students are women. 

Fewer women than men however are interested in Computer engineering or physics, particularly when it means high-stress, competitive environments. Not NO women, just FEWER than men.