Some contemporary liberal progressive black people with a sub-Saharan African origin take stances against the idea of race and believe it unworthy of being taken seriously since race is only about arbitrary skin color and no substantial commonalities. Ethnicity (people of the same local culture and language), they say instead, is an identity which is real and only what should be embraced.
In reality, race doesn't seem to only constitute skin color/tone. Racial groups when examined have several other phenotypical differences... including hair type (texture, length), general body height, the size and shapes of different body parts (skull, eyes, nose, ears etc).
By phenotypical differences, there are huge similarities between people of different ethnicities around the same geographical environment. There are these similarities for example between (Senegalese, Ghanian and Gabonese) people, (Eritrean, Somali) people, (Korean, Japanese) people or (Danish, Norwegian, Swedish) or (Syrian, Saudi Arabian) people.
These clearly are real phenotypical differences in people in different parts of the world. And the fact of their consistent replication over several generations proves these differences are genetic. I don't think progressive black liberals who refute the idea of race would dispute that fact. Consistently reproduced similarities in phenotypes of people in different parts of the world are real, and that is what 'race' is. Could the word 'race' have lost its original meaning, but the concept we have just described be real? Yes.