There's nothing wrong with the words, "white, "angry," "man" or "old," but when you put them together, as in "angry old white man," that's pejorative.
That's your interpretation. One could say you're being overly sensitive. No one is stopping that group from doing anything.
Conservative talk radio campaigns against something they call "wokism." The only thing "wokism" does is promote respect and civility in the treatment of minority groups. They preach banning of approved medical procedures for transexuals. That's taking a pejorative to an extreme, by codifying it in law. Nothing like that is being done to "aowm."
We need to get to a point (and we're not there yet) where both sides have respect for each other. We need to have a level of tolerance for minorities. The founding fathers wrote a constitution that understood that. It's why they didn't allow the government to create a national religion. Yet we have people citing their religious beliefs as a reason not to serve people they don't like. That again is using a pejorative in an active, prejudicial way.