https://blog.grio.com/2020/06/uxui-design-across-cultures-us...
Ethnicity is then being used as a proxy for culture, even though it's a bad one, because it's a visible one.
It's basically starting from the premise that cultural diversity is valuable and then applying Goodhart's Law to the thing most easily measured. Whereas traditional racism is more like starting from the premise that cultural homogeneity is valuable and then applying Goodhart's Law to the thing most easily measured. It's applying the same fallacy to the opposite premise, which is an error regardless of which premise is correct.