Race is still a non-issue, though. A quick cross-reference of a map of population by race and a map of Nevada reveals that blacks are only 8% of the population anyhow, with whites and Hispanics being the bulk of the population. I mean, this is a universe where race issues are already present- as in, Super Mutants and Ghouls. Whole entire different species of man. There's enough racial representation within the universe by default.