In American science this stuff is immensely complicated because the vast majority of black Americans are “ADOS” and represent their own distinct ethnic group in the current era, but that doesn’t include any immigrants from Africa (especially east africans who share little DNA with black ADOS) who are lumped in with them for medical purposes.

If anything lumping white and asian together as a singular things is more of a problem here medically speaking in terms of genetic risk factors since there’s less mixing as you move across the country. It’s just that there are institutional problems as it relates to developing medical treatments for non white groups.