Biology and Inequality

If we say that biology explains inequality, then we must also say that blacks are, as a sub-population, biologically inferior to whites, since blacks as a group substantially trail whites in every significant social category - income and wealth, educational attainment, health and wellness, housing, etc. Any argument that roots class differences in biological differences must therefore also be a racist (and sexist) argument because it uses inequality in occupation, income, and wealth to infer the existence of group biological differences which, in turn, justify inequality. The argument is circular, as well.