Do any differences ever make a difference in performance? Like a particular tribe of Kenyans utterly dominate distance running events, west Africans utterly dominate sprinting events what accounts for those differences?
What's lost in all this and that I have seen zero evidence presented for is that I am in no way convinced that the population groups that are "under-represented" as software professionals have much interest in being software professionals.
Whatever differences in capacity that may exist among groups the differences in interests are surely just as big or bigger.