We grew up in an America that had a taboo structure. That taboo structure varied from reagion to region, but it acted as unspoken agreement of what would be tolerated and not tolerated. Of course such a taboo structure is a prime target for the progressives who use tolerance and political correctness to cow a culture, so they must corrode and destroy the taboo structure in order to insert their twisted godless ‘correctness’.
Every society has taboos. Political correctness is simply a different set of taboos.