What they seem to be doing is judging people based on surface traits
Do you believe that a poor black kid from Detroit is only different in "surface traits" as compared to a rich white kid from Orange County?
Or would you be willing to concede that there may be reliable correlations between some "surface traits" and diversity of life experiences and viewpoints? Demographic analysis of things like voting patterns in the US seems to suggest differences of such magnitude that I doubt you'd find another factor more strongly predictive.
Do you believe that a poor black kid from Detroit is only different in "surface traits" as compared to a rich white kid from Orange County?
Or would you be willing to concede that there may be reliable correlations between some "surface traits" and diversity of life experiences and viewpoints? Demographic analysis of things like voting patterns in the US seems to suggest differences of such magnitude that I doubt you'd find another factor more strongly predictive.