I would simply re-iterate my point. I think you (also, as a different person than I originally replied to) need to get out of your filter bubble. You do not understand why people find political correctness offensive. Note how I do not phrase that as a question. It is definitely not that they just don't want to have to be nice to people.
When you understand, you may well still not agree with it. (The idea that "understanding is agreement" is a very naive one, but popular nonetheless.) But you clearly do not understand it.
You are making assumptions about me that are simply invalid. In fact, I have deep concerns about the sort of culture originally denominated by "political correctness", especially its effect on freedom of thought within the academy. I am merely pointing out that the term has been coopted by people who use it maliciously and in bad faith, to the point that I don't think it makes sense to use it anymore.
When you understand, you may well still not agree with it. (The idea that "understanding is agreement" is a very naive one, but popular nonetheless.) But you clearly do not understand it.