Is 70% overwhelming? It might be so in a political election, but among mathematicians or bass players it might not.
You could suppress male outliers until you were blue in the face, and 600 would still get through your screen. Lopping off the top 600 and saying, "There? See that? Doping up boys on Ritalin while their brains are still forming has no effect at all. Tossing them into dumbed-down 'special ed' classes if they fidget more than girls is actually good for them!"
Never mind the 600 math Ph.D.s. Look at the TIMSS results. Our brightest kids the ones in the advanced classes are no better than average kids in other developed countries. We are obviously doing something in our K-12 education system that chops the performance of our smartest children. Arguing about whether we can still find 600 smart ones when the feminists are done celebrating Girl Power for 12 years is missing the forest for the trees. Sixty per cent of the incoming freshman classes are female, and a big fraction of the science and engineering majors are foreign. You don't need to know any more than that to understand what's going on. Enough with the anecdotal hoo-hah.
Look who's above us. Look who's below us. Does this make you think there's nothing wrong?