Give it a rest with that tired old argument, mate.
It can also mean "don't commit hate crimes, deny jobs to people on the basis of race, religion, gender, etc. without evaluating their abilities as human beings first and foremost, don't treat entire groups of humans like they're lesser life forms, etc."
You're literally just waging war on 'words', because it has "political" and "correct" in it. That sounds like the dumbest word ever, absolutely. But outside of crazy people taking it too far, it's stood for "basic levels of respect and human decency" in tons of contexts, but now people using the term act like condescending pricks, so there's this weird growing American backlash against a word that's literally at its core, just a synonym for "respecting humans" that's been distorted by certain groups with nutty agendas. I'm sorry you're pissed off about having to respect certain types of people, who now don't want you calling them "c*nts" and "f*gs" and such.
Don't disrespect people on a daily basis, and you should be just fine. None of that stuff's going to cripple your life.