you know, QS..Political Correctness obviously means different things to different people. I see it as an extreme attitude often times when individuals use it as a club to beat other people over the head with their "right and proper" political beliefs and/or ideals to marginalize other people who disagree with them. I don't see it as a value like kindness, tolerance, patience, or "not spouting off". I no way see it as "class".
Tolerance for differing ideas is needful in any but a Nazi type society...and most certainly I'll bet nobody in that polite society said a thing (within earshot ) of anyone that differed from the party line. So..do we really need a thought police to tell us how to think and feel about all things political. We all obviously should take responsibility for our own words...
One very important thing I was taught growing up was to "consider the source". I still do. It's made a lot of things a lot easier.
In in summing up, QS, given how you perceive "Political Correctness" I totally get why you think it's a good thing.