Judging a movement by its fringe is unhelpful.
> if there is any discrepency in outcome between two groups (whichever way you cut the population), it is the result of discriminations and power struggles
A more accurate way to frame this would be "If there is any discrepancy... it is likely influenced by discriminations and power struggles, and we should be paying very close attention to the societal factors at play in an effort to reduce their impact."
You end up in looney tunes land pretty quick if you swing too far in either direction with absolute conviction. Too far in favor of DEI, you wind up with things like "actually, women are only physically weaker because they're oppressed". Too far in the other direction, you wind up with things like "actually, crime is genetic".