> Telling people how everyone in a group of people does xyz is the exact problem you are complaining about.

No, in this case it is actually the opposite. The problem I am complaining about is people ascribing negative aspects (extreme opinions) to people uttering snappy slogans. What I did was ascribe a positive aspects to these same people, namely that they can all describe their opinion as being nuanced. (Obviously the words “every” and “all” do not literally mean “every” and “all” in the mathematical sense, but that’s just how language works.)