> relative to the rest of the world the US 'white' culture is extremely distinctive African descendants of slaves in America ("Blacks") are similarly distinct.

> relative to the rest of the world the US 'white' culture is extremely distinctive African descendants of slaves in America ("Blacks") are similarly distinct. Both have undergone their own ethnogensis, which makes them distinct from their original continents (Europe, Africa). Both are multi-racial ethnos as well (unlike many European and African countries).