That quote is straight from the article. I think the author is arguing that everyone should be given a chance to develop their interests and abilities, rather than forcing anyone's interest to match a preconceived notion of the desired population outcome.
0: http://www.npr.org/sections/money/2014/10/21/357629765/when-...
It turns out that the more egalitarian the society, the more the genders self-segregate.
The easy explanation is that once outside pressures reduce, innate differences have a much greater chance to exert themselves.
Surely tech companies now can't be less welcoming to women than the medical field in the 1950s-1980s? Particularly since this is an issue that everyone in tech is now consciously aware of.
No. You are supposed to believe that discrimination against women in medical fields was no higher than what existed in society unlike in fields like Finance and Tech where there always was and continue to be a disproportionately higher degree of bias