Drake

You could be very right. I think Brazil has one of the largest black population outside of Africa. They seem to be deeper into sports like martial arts considering there is Brazilian Jiu-Jitsu. Even though American blacks are filtered for other sports, this may not be the case elsewhere. Who's to say there isn't a heavyweight version of Anderson Silva somewhere in Brazil or a better skilled European than Cheik Kongo. Recall that in boxing's last decent era the heavyweight title holder was black, but he wasn't American. Lennix Lewis is British.

Americans and American blacks will probably have decent representation in MMA (Rashad and Jackson holding or having held belts is theoretically overrepresentation already considering population sizes), but I think you're seeing sports begin to even out now that non-Americans have greater access to American training, equipment, diet - the science of sports. American black males in particular who aren't chasing other avenues (NFL, NBA, etc), or who aren't incarcerated have also likely made strides on the economic ladder since the 70s. When other groups did this (Jews, Irish, Italians, etc.) their participation and representation in bloodsports (at the time, boxing) declined. So harnessing a string of dominant black American heavyweights out of a 6% of the population [blacks are 12% of America's population, so approx. 50/50 men & women) for MMA is unlikely even if we assume the talent exists.

All things considered, I'd expect a fair amount of Eastern European representation in MMA for some time vying for top spots alongside other European, North America, and South American champs peppered all over. But man's predictions are often worth squat.