Skin color, facial structure and other commonly held visual traits of "race" don't map strongly to genetic identifiers that could form some scientifically valid definition of "race." Two black people living in the same area, sharing the same cultural and ethnic identity, can differ more genetically than either with a white immigrant.
In other words, that "black" is a race, and "white" is a race, etc, is entirely a social construct, which should be non-controversial given that these categories were created and solidified, culturally and politically, long before genetic science was even a thing.
Skin color, facial structure and other commonly held visual traits of "race" don't map strongly to genetic identifiers that could form some scientifically valid definition of "race." Two black people living in the same area, sharing the same cultural and ethnic identity, can differ more genetically than either with a white immigrant.
In other words, that "black" is a race, and "white" is a race, etc, is entirely a social construct, which should be non-controversial given that these categories were created and solidified, culturally and politically, long before genetic science was even a thing.