I think there's a context for anything, tbh. For example, if you're at your job or your company, not being PC is generally bad for business. You might not gain anything from being PC, but you certainly can lose (your job/clientele) if you're non-PC.
If you're in the privacy of your home, or having a few beers with friends, I don't see the problem if people want to be whatever...
I mean, ultimately, you're free to express yourself in whatever way you want, but there's always consequences... if you can assume them and move on, then, there's no problem.