[morpheos137]

There are most certainly meaningful genetic clusters in human populations. You can call these races or something else but to assert that differences between human populations only extend to a few superficial traits like skin tone is just ignorant and silly. For example there is a meaninful genetic reason why some sub-saharan populations have a higher incidence of sickle cell anaemia than Irish people or why most of those with native American heritage are less able to tolerate alcohol than Europeans.