I never meant to say that MLB was dominated by black athletes. But the vast majority of the black players in baseball are hispanic/latino. I agree with you about the skill set in baseball allowing for more white players. Not so much in basketball and football, where its who can run the fastest and jump the highest. And, let’s not forget that black kids grow up idolizing ball players instead of their fathers. They all think they can make it to the NBA. And I think I read somewhere where you have a better chance of walking on the moon than you do making the NBA.
I think part of the reason that so many bullpens are full of tall athletic white lanky kids throwing 95+ in recent years is that they have started choosing baseball instead of trying to compete with tall athletic black lanky guys at younger and younger ages in basketball.
You are right about the physical requirements in football and basketball. The great equalizer in baseball is hitting a round ball fair with a round bat, especially when it’s 90+ and your timing is messed up with slower breaking balls and change ups. If you can do that, some of the other more physical skills that might be lacking don’t matter as much.