What's actually happening: society is justifiably deciding that some things that used to pass without notice, because people were very racist or sexist or homophobic or whatever, are now recognisably and irreparably awful. And we should probably stop doing them because they are hurting people. Both directly, by being the constant micro-aggression wallpaper of marginalised lives, and indirectly, by sustaining a cultural environment that comforts bigots in their bigotry.
I don't expect HN to understand this. But it is fundamentally different from the various tirades of the Moral Majority and friends. This is not an attempt to impose a religious set of restraints. This is an attempt to make the world kinder and less awful. And it is a good thing.