There were real people indicated by the slurs and words we used to use on the playgrounds in the 80s, which we “can’t” say anymore. Perhaps those people experienced those golden olden times—when everyone was much more relaxed—as a MORE polarizing time than now.
I have to say, if I were a gay teacher at my elementary school in the eighties, I might have experienced that time as extremely polarizing.
There were things you "couldn't" say then, too.
Things like, "actually, I'M gay."