Does the concept of race exist?
All human beings of all cultures and ethnicities are of the same taxonomic species, homo sapiens sapiens. We have different phenotypes based on the biological adaptation of our ancestors to the various regions of the world in which they settled, but from a biological standpoint, these differential phenotypes bare no clout as they do not affect the ability of a female (of my race) to produce fertile offspring via the gametes of a male (of any race). However the biologically irrelevant division of racial phenotypes has not stopped human civilization from using it as a means of social categorization since it's inception. But of what utility or benefit is it to human society? Is it an obsolete practice that reinforces social stratification and halts the progression of human intelligence, or does it's recognition as a valid social system which classifies people based on taxonomically irrelevant phenotypes hold genuine merit?
This is for college, so no trolling please. Complex answers would be nice.