How are things offensive if they turn you on? If a white guy or a black guy wants to look at interacial porn that uses a lot of racial slurs, either one is doing it because it turns him on. There might be something taboo about it, and that might be why it's turning them on. Perhaps a big black successful upper level manager wants to fantasize that he's a "****** banging insatiable white sluts who can't get enough of his huge black cock" (improvisational porn writing right there). When it comes to sex political correctness societies rules just don't matter. If people adhered the rules of society rather than what turned them on, every gay guy here would be married to a woman right now. You'd be stuck in a marriage with a terrible sex life because you put societal rules over your sexuality. It's in that same spirit that a porn surfer can say "Forget society, I'm in my home with my computer and I'm going to whack off to "chink midget bitches getting fucked by huge ****** cocks."
That was possibly the most offensive thing I've ever written or said. Either way, point is societal rules vs. sexuality, crushing victory for sexuality.