Your argument is based on the fact that more men naturally gravitate towards STEM than women do. This doesn't mean there aren't still men who could go into STEM but lack motivation/opportunity/some other push. Maybe there are more of them than there is women like that, maybe not. You are saying it's ok to ignore all those men just because already bigger % of men naturally go into STEM. This is just discriminatory. Just because some people sharing some characteristic with me do better (in this context) doesn't mean I am in position to do better.

This is the mistake DEI proponents make. There is no "we men", there are individuals and discriminating towards them is not ok and also illegal.