Political correctness is a social movement not a government mandate. There is no punishment for failing to adhere to it besides the disapproval of others.
This isn't entirely true, since government policies and the activities of government officials are informed by social movements. Don't you remember when that mayoral aide in DC was fired for using the word "niggardly"? Non-departmental government bodies in Britain have just received a new list of "potentially offensive" words to avoid including such shockers as "black day", "gentlemen's agreement", and "right-hand man". (See: http://languagelog.ldc.upenn.edu/nll/?p=1690#more-1690
.) Now, I can't imagine someone is going to be summarily dismissed for using one of these terms, but don't you think that continued insistence on ignoring the restrictions could affect an employee's job security?
Me, I adhere to it simply because I think people have a right to be called what they want to be called, ie. I'd say Inuit instead of Eskimo.
Except that this is offensive--or, at very least, irritating--to those many Eskimos who are not
If people want to continue discussing this topic, it really deserves a separate thread. As I said above, it has even less to do with the original topic of this one than our discursus on evolution!