As a white person I have never known white supremacy and most other white people haven't either.  That is just a label minorities pin on whites for their own short comings.  The proof was in the 44th president, arguably the most powerful person in the world who was awarded the Nobel prize.  This should have been a conference on attaining more opportunities for minorities, not taking away from another group.  A rising tide rises all ships so it is in the best interest of all Americans to promote opportunities for all without taking away from others.  As long as minorities can claim they are not successful because the white man holds them back the longer they will be unsuccessful.