If your contention is true here doesn't it refute the forget argument entirely? If only males (the ones with penises) subjugate others then there must be strong sex related differences in people, no.
I was being facetious in my first sentence. Obviously, there is no strong biological discriminator when it comes to oppression. There is a historic precedent for something like that, but no evidence that it's strictly due to biology.
Look at any single factor or category of factors you want, and it never applies to all groups of humans. And this is because it's a social dynamic, and so it changes between social groups. Focusing on biology is bikesheddding.
