I find the phrase "Political Correctness" to be hopelessly compromised. It's a real thing (the standard left-liberal 'circular firing squads' that form up almost everywhere, the pointless parsing of language looking fro something that might be offensive), but it's also heavily used as a all-purpose generic insult.

There appears to be a alchemical transformation that results in people's minds, where "<Obnoxious Statement X>" on its own is obnoxious, but "I know it's politically incorrect to say so, but <Obnoxious Statement X>!" makes you a Free Speech Martyr and a real deep thinker.