Would you mind explaining how - even in this fantasy world - people living in closed societies would get wildly different features? Somehow elves are different from human who are different from gnomes - it there are 2-3 afro elves or afro-hobbits? That’s what’s jarring about “per quota” insertion of minorities - because it contradicts our experience. One can make southerons look Persian or Indian, but having a token minority is just laughable. And throwing around virtue signaling is not helping your argument.