What I really wish is that we could redefine political correctness as “not colluding with foreign governments to get elected” and “not starting wars to get re-elected” and “not lying during (or after!) a campaign”. However, that’s not the world we live in, yet.
One definition I like says:
The avoidance of forms of expression or action that are perceived to exclude, marginalize, or insult groups of people who are socially disadvantaged or discriminated against.
This definition is almost neutered by the phrase “…are perceived to…”. Take that out and I’m good with this definition.
NPR’s piece on the shifting history of the phrase says:
So, to review: “Politically correct” means politically wise or invalid or hypersensitive or cowardice.
It’s not just the Republicans or conservatives that use this phrase as a weapon. I hear comedians and pundits of all politics stripes use this as an accusation against their critics (see various forms of “fragility”). The common complaint is that the speaker “can’t say” what they want to say. Actually, they are perfectly free to say whatever they want. They just don’t want to be criticized for it. That turns their free-speech arguments upside-down.
Still, just using the phrase plays into the game. If I replace variations of P.C. with “compassionate and inclusive” my intent is clearer and harder to argue with.