I disagree. How many great inventors, thinkers and scientists are non-white? Which nations with a minority white population have proved to be a success? Only exception is Asia to some extent.
If race has nothing to do with ability, then certainly you can explain why most successful football and basketball players are black.
If you need ablood transfusion, you should thank an African American doctor for pioneering that life saving,procedure. If you care to listen to the most innovative music that swept the world culture and made one of the greatest contributions to the A,erican legacy, you should thank African American geniuses like Louis Armstrong and Duke Ellington. If you care to enjoy the American theater, you should thank my fellow Pittsburgher August Wilson.
And again, melanin and complexion have nothing to do with intellect. Complexion has nothing to do with achievements. And nations that are not majority white suffer from factors you chose to ignore. A history of brutal colonialism. Authoritarian governments. Cultural divisions based on ancient tribal rivalries.
The majority white nations struggled for 400 years under the same issues while ,athematicians in the Middle East developed algebra. It was called the Dark Ages and it was perpetuated by notions of division, suspicion and hatred.