Olympics is unfair to begin with?

I mean, USA would always be UP there. Not counting the resources, most American athletes have the "genetic" ability ....with the combination of white and black. Whites have the height, big bones, and general physique to excel in most sports like swimming that produce a lot of medals plus the black americans for running and blacks generally excel in running. And I kind of doubt it any Asian would come close to becoming a Michael Phelps coz Phelps is very good no doubt but he also is tall and large bones.