> Likewise, the fact that people differ in their intellectual capabilities from birth is inconvenient for liberal egalitarians.

It is? Egalitarianism is usually considered to be the position that all humans have equal moral worth, not the position that all humans have equivalent physical and mental capacities. Not even actually existing Communists believed the latter, as far as I’m aware.

But just to double check:

> Egalitarian doctrines are generally characterized by the idea that all humans are equal in fundamental worth or moral status. As such, all people should be accorded equal rights and treatment under the law.

https://en.wikipedia.org/wiki/Egalitarianism

Nor does the existence of special laws or practices concerning low (or high, for that matter) IQ people pose any great obstacle to egalitarianism, assuming the laws or practices in question do not infringe upon moral personhood.

Rawls is a typical egalitarian philosopher and he takes care to account for these natural variations in the human condition during both the classic _A Theory of Justice_ and the modern “restatement” in _Justice as Fairness_.