Political correctness is a field of study in itself. I'll begin this category with a few words that are both politically-incorrect and are closely related to hypercorrectness.
Black English example: Using "do" in the third person singular is not irregular because it drops the archaic
Ross Perot said "you people" and African Americans took it offensively.
The Latin and Spanish for the word black are "niger" and "Negro." The English pronunciation has a soft "g" for the name of the country or river "Niger." The Latin and Spanish retained the hard "g" and these words are the root of the offensive N-word. It's ironic that a word that has such an offensive meaning is used comradely among blacks (a variant is "nigga").
"Crippled" is offensive to the disabled.
"Dumb" is offensive to someone who cannot speak.
I met a DJ who seemed to believe that all language should be "cynically-correct." Educators tend to lean to the "liberally-correct" philosophy. Some "conservative-correct" religions see no difference between religion and politics.
I mentioned to an educator that I wondered where society got the idea that property owners are responsible for the cost of educating other people's kids. She responded that that was just my opinion. I exclaimed, "Wait a minute! It may be someone's opinion as to who's responsible, but unless I read my last tax bill incorrectly, it's a fact that I'm paying to educate other people's kids."