"Race" is typically defined by phenotype, and it incredibly messy to try and pin down genetically. Sure, I've no doubt you could create genetic averages and fi

"Race" is typically defined by phenotype, and it incredibly messy to try and pin down genetically. Sure, I've no doubt you could create genetic averages and fit most people your targeting into race groups based on a selected phenotype or group of phenotypes. But the genetic variation between those people for non-selected phenotypes would tend to be just as large as between any individual in the "race" as outside of it. So, switch your looked at phenotypes and the race lines with shift with them. So, the question becomes not whether you can formally define a set of races if you wish, but for what purpose exactly are you trying to genetically formalize these social constructs?