I've always gathered that you'd prefer that sort of content not be present at all. You've explained your reasons, and they make a lot of sense, but I think there's room for a lot of different settings, and I don't feel every polity or species need to treat each other nicely in all of them.
Now, I do agree that language can be cleaned up and be less reminiscent of racist dogma, but it seems like it should be possible to take that edge off without scrubbing the idea of potential prejudice out entirely, because sadly there are a lot of terrible things in the real world, and removing them altogether from all published products feels disingenuous.
Now, If you were just talking about the core, and you were cool with published settings still sometimes operating under these deeply unfair but often narratively relevant and useful systems, then I am on board. But your arguments about how there are other ways to get a similar narrative read to me like you want the old narrative, not just the old language, to disappear from gaming and never be seen again. If I am misunderstanding you, I apologize.