But beyond dismantling these weird divisions of people and then enforcing weird lifetime roles on them, stripping liberties of those who don't comply, I guess can you really say there's something so bad about removing these weird ideas from the world and just letting people live how they want, because we understand it's not a real thing, it's like racism if we never made it up it wouldn't have existed.
But that's an aside, I say it is correlated because it sex has nothing to do with the relation as a independent variable, it's a social science not a biological science -- a social interpretation of biological science. See gender is simply aligned to sex.