No disagreement, but I have to ask, what would 'appropriate political correctness' look like?
IMO, a small amount of politically correct speech can be tolerated in the name of good manners, for example when you're a guest at someone's home and they use a PC term, it's not required that you inform them of your preferred blunt, direct term -- it's often "appropriate" in that context to be polite to your host.
In other words, despite our general disdain for politically correct speech, it actually is not -always- necessary to call a spade a f**king shovel. :)