So I suspect that in a perfect world with no discrimination the proportion of sexes in each field of work will not be equal, and this is important to keep in mind in industry self-flagellation sessions. Our industry is educated enough to buy heavily into feminism, but nature has a way of confounding all breeds of egalitarians.
The progressive explanation for these differences is that they are all culturally determined. I am not convinced that is a parsimonious explanation of the data. I suppose this makes me evil.
For what it's worth, there's also well documented cognitive differences in human subpopulations. Progressives also believe that these differences are all due to culture. I'm not convinced that human groups which evolved apart for 80,000 years in differing circumstances should be exactly equal in all ways modulo culture. Again, I'm evil. But also remember the overlapping bell curves. That's what I'm arguing the global distribution of talents in human subgroups looks like.
I haven't been to /pol or /r/mra much, but I suspect that they do deal in some suppressed truths in addition to a lot of adolescent noise and filth, if only because the forbidden truths are juicier.
[1] https://controls.engin.umich.edu/wiki/images/2/25/Overlap.gi...