Against my better judgement, I'll bite.
'He is actually right on the fact that few whites are in boxing'. No, no he isn't.
There are plenty of top-level white boxers, there is just a relative lack of top-level American white boxers. The whole 'Great White Hope' thing is not just about racism but jingoism too. Which makes nonsensical argument's like Floyd's impressively stupid.
There's also a genetic component to it; it's not all cultural or social impacts. The quote below from the book "The Story Behind the Amazing Success of Black Athletes" explains some of it:
"For years it was axiomatic that muscles have two types of fibers - white, or fast-twitch, which were thought to be adapted for power movements, such as leaping or sprinting; and red, or slow-twitch, which were adapted for endurance. Now we know the model is more complicated. There are in fact two different types of fast-twitch fibers, one more metabolically efficient. Whites on average have a higher percentage of slow-twitch fibers than West African blacks who generally have more of both types of fast-twitch fibers.
Although fiber composition can significantly
affect performance, it is not sufficient by itself to
ensure high performance. Since endurance is only about 25 percent inherited, training plays an integral role-but more so in blacks than whites. Experiments show that with only a modest amount of training, blacks can experience an explosive rise in exercise capacity, while even with far more effort whites don't improve nearly as much. In contrast, it appears that no amount of training can break through genetically-imposed, inherited limits on anaerobic capacity-the ability to sprint and jump. Thus, although fiber type alone does not itself guarantee a champion, if an athlete does not have a certain proportion of fast-twitch muscles, he or she can't hope to be a champion sprinter or jumper. In practical terms, this detail suggests that sprinters are born, not made."
