Yes... and also there are other factors working against women that are impossible to calculate exactly how detrimental they are.. Like, I was reading this article earlier today
https://www.nytimes.com/2017/06/30/technology/women-entrepreneurs-speak-out-sexual-harassment.html
and I thought about the other thread, in which a bunch of men gleefully talked about how the wage gap doesn't exist, "it's so easy to prove" that the wage gap doesn't exist... men and women just gravitate to different fields, if men make more money it's because they work at higher paying jobs and do a better job at them, pure and simple. No sexism. And here we have a lot of women saying that they go to get financing and get a career off the ground and instead of acceptance or rejection they get sexually harassed. How many more women would be in the tech field if these women, and just as importantly and impossible to calculate, all their families and friends who hear their stories, weren't discouraged out of the field, into something inevitably much lower paying than tech entrepreneurship? And is this only in tech? Of course not. So saying something like "discrimination is illegal in job ads" is ridiculous. Is the behavior described in this article contained in a job ad?