Two main reasons why America has the best athletes in the world:
1 – Slavery
2 – Segregation
We are never supposed to talk about it, or admit as much, but the reality is indisputable.
Long-ago pre-Americans brought over the finest “young bucks”… and occasionally some women with whom they exclusively bred. Then for centuries those genetics kept circulating, mostly among themselves, with few outliers until very recently.
The prime physical genes surface now and again, and produce super-human athletes who are revered today.