This isn't exactly crank science. This is a valid challenge to an equality assumption which permeates modern academia and industry, with potential negative cons

This isn't exactly crank science. This is a valid challenge to an equality assumption which permeates modern academia and industry, with potential negative consequences, which has never actually been proven. And the same correlative "evidence" for sexism (which really is just a conflation of equality of outcome and equality of opportunity) could just as readily be taken as a manifestation of functional inequality. But social stigma and an imepenetrable bias in academia keeps any meaningful research in this area from occurring, probably because people are afraid of the potential implications. That's bad science and ultimately is probably bad for society if it turns out these unproven assumptions for equal competence are untrue.