I think the OP question is wrong. I wouldn't say that there should be racism in the game, but I'm fine with saying that there could be racism in the game. If someone was to put racism (or misogyny, or sexism, or chauvinism, or antisemitism, or whatever-other-ism that's popular at the moment) just for the sake of it being there, I'd call him stupid (and that'd be an euphemism, also quite popular). But if it would serve the story, or simply fit into the world, I'm fine with that, and my respect would go to the devs, because they would be criticized and attacked, and consequently their sales would also suffer. Most people sadly work on a on-off basis and react the same way to wherever they see their favorite subject used not in a way they'd prefer (it's like fanboysm, who would've thought?), bashing at the offender from their moral high ground. I wouldn't be surprised if CDPR decides not to go quite that far with those controversies, and I won't hold that against them. The humans-non-humans issue of The Witcher series was acceptable because these were quite abstract groups, so no one felt offended, but I bet that if the devs would set up the exact same motive with, say, white humans-black humans conflict, whole Internet would shake from the outcry.
And I recall I saw a person who accused TW2 of being not up to par with modern games because it did not have any African-American characters. (And yes, he used the very term.)
Having said that, although I'll understand if the devs would not delve deeply into such issues in CP, I would really, really like for them not to omit them entirely. I don't see any reason why a random thug on a Night City street should check his tongue when pissed off, after all.