There is no science to support the idiotic theory of racial demarcation. Only racists like to use race as a point if discussion. White is a very loose reference to skin color. Again why are there no "white" or low melanin running backs in the SEC?
This is my only observation. While a student at UT, I had a 7am class. I walked by the practice field 3 times a week and every time there would be at least 50 or more athletes running sprints and etc.. They were all black. Not one white athlete. They were willing to work harder. I saw people like Willie Gault, Mike Cofer, and such almost every time.