no offense, but "human nature" disregards all physical/mental characteristics.
No it doesn't. It should, if assessed accurately and without bias, but it doesn't, largely because those conditions are impossible.
My personal, humble opinion: Recent political trends and the shaky, politicized conclusions they posit do not supersede human nature.
There are plenty of non-old-white-boys at McKinsey doing heinous stuff. I wish fixing things was as simple as increasing diversity, I really really do. Improving diversity is laudable goal in itself; don't count on it to fix these sorts of problems.