How is everyone defining PC?
Here is the take from wikipedia and I agree with their definition:
Political correctness (adjectivally, politically correct; both forms commonly abbreviated to PC) is a term that refers to language, ideas, or policies that address perceived or actual discrimination against or alienation of politically, socially or economically disadvantaged groups. The term usually implies that these social considerations are excessive or of a purely “political” nature. These groups most prominently include those defined by gender, race, religion, ethnicity, sexual orientation and disability.