Yes but basic dnd does have a lot of racism build in, esp with Gygax not being great on that end (nits make lice he said about how it lawful for paladins to kill orc babies). They did drop the sexism pretty quickly, but no big suprise his daughters were not into it. It certainly helps with the whole hierarchical mindset. My int/level is higher than yours so im better than you stuff. And sadly a lot of people do have trouble keeping both seperate (and even that isn't always ideal, esp in larps).
But yes this, considering the context ks def a bit of a case of some of their ideologies, or ideological fantasies bleeding through. (Esp considering, Yud has been corrected on his faulty understanding of genetics before).