I don't think in those terms so I looked it up. My state is 50% white, Idaho is 82% white and SA is 10% white. You could just as easily conclude that nearness to the Equator is the main factor in Covid variants and black population. Delta was traced to India and Covid to China. Population density and vaccination rates may be more relevant imo regardless of race or climate. It is as meaningless as comparing burka wearing infection rates vs. spring break bikinis.