I am going to be very blunt here. I take a view that is widely acknowledged as "racist". I do not know the exact cause (whether genetics, economic status, upbringing, culture, etc.), but individuals of African descent DO overperform in athletics, and underperform academically. It makes no sense to me that people cannot acknowledge what is right in front of them. It's like trying to say that women are not athletically inferior to men, while watching a women's professional basketball team being dominated by a boy's high school team.
I doubt you would have problems acknowledging the fact that African Americans are disproportionately favored in academic admissions. Why do you have issues acknowledging the fact that East Africans are exceptionally good at distance running?
You're really trying to have a serious discussion with Coevett? Ummmm, maybe you re-think this idea? But still... GOOD LUCK!