Is your argument that appropriateness is dependent on your taste?
No, in fact "appropriateness" is dependent upon the people around you. The community if you will. It's a simple concept really. What is "appropriate" socially is not based upon any one person's taste or preference. At heart, it's nothing more than the standards of the community. And you know that you've violated those standards when nobody's laughing at your jokes any more and people are starting to shun you like you've got a dog turd in your pocket. I like to refer to it as the "Cheese Stands Alone Effect". And brother, racists, misogynists, homophobes are nothing but limburger. That's why they have to create little putative "safe havens" like 8chan and Stormfront and neo-nazi organizations and the Westboro Baptist Church. Little communities where they can pretend that that shit is A-OK because a handful of other losers are there to back you up. Good luck with that.
And there's the rub. The "community" has changed, and that bothers a lot of small men, who have come to believe that because they've managed to push someone else out of the tree house, that it's now their tree house. And they're learning the hard way that the ground has shifted under them long ago.