It is a moving target, PC is. In ye olden days, there were common expressions of ethnic import: "jew someone down", "dutch courage", "welsh on a bet". I never heard 'em much, but now I don't hear them at all in the U.S. or online. I'm in favor of that sort of PC, but there is a lovely song Gordon Bok used to sing that has the term "indian giver" in it and I can't find anything else that scans right in its place.

Gilbert and Sullivan used the 'n' word in "Mikado" and long since it has been successfully edited out. Now there are PC hounds who want to edit out the whole "Mikado" which is a clear case of over zealousness since it means they don't understand what "Mikado" is about. It's not about the Japanese.

Locally there is a whiff of PC sentiment against the term eskimo. I know the older generation of Arctic natives does not hold a grudge against it, but maybe some of the later generations want to establish a sense of control over terminology. The issue might not be the word itself, but a sense of ownership.