The one thing to understand about “politically correct” speech is that it is systematic lying. Otherwise there would be no need to qualify the word “correct.” Conversely, if politically incorrect speech were merely incorrect, there would be no politics involved. If it were simply not true, nobody would get upset about it. If it were not true, it would be permissible to say it.
It is, therefore, positively immoral to use politically correct terms, let alone to enforce its use by others.