I also avoided the heavy subject, but here it goes: I come from a former 3rd world country, now battling around the 2nds, even though my profile says Germany.
The issue there is: there is still domestic violence with a definite bias on men against women, there is still tacit discrimination ("a woman can't handle this job") and other stuff that's fuel for the current 'war on sexism'. But in the IT and other STEM fields the women have an almost 50% ratio of jobs. They fight harder because they know that it might not be a level field. Also, this kind of discrimination I've seen duplicated, in closed quarters, throughout the world, from 1st to 3rd world countries. Having a strict law, a strong movement or any other deterrent against this just softens the voices, almost quiets them, but it does not shut them up. Get people drunk or angry and you will know their true opinion.
My point is, all this talking about 'potential discrimination', 'meeting the quota' and other stuff happens only in 1st world countries, but achieves almost nothing, quite the opposite. On the other hand, in my home country, economics, fair game and competition helps sort these things out. Again, I'm talking about 'potential', under-the-veil, my-father-told-me stuff, not the evident infractions (like O'Reilly). For the former, it is your responsibility to curb the bias, for the latter is a matter of justice.
Now think about the female job share in US or Germany (as examples) in the STEM or IT field (with which I am familiar) which is hovering below 15%.
If you (as a random reader) are still nodding your head in disbelief, come meet me, or chat with me on private and I will take you on a tour. I'll happily admit to living in a dream, if that's the case.
SUMMARY: in situations where economics and fair prevail, the best people will be chosen for the position, regardless of gender, race or disabilities. If you try to skew that distribution it might end up going the wrong way.