Is there? I've not read it, but I understand it's pretty atrociously written, but that has never stopped a bookshop from carrying something.
Lack of demand? Maybe, but there's enough edgy teenagers who do read it that you could probably justify shelf space for a copy.
I think that's just how modern western democracies censor stuff. It doesn't get banned or censored, but offensive art is just shoved to the margins, you have to go look for it if you want it.
And that essentially brings us back to music - if you want to hear the original Fairytale of New York, or N***** in Paris, or WAP instead of their censored versions, you just have to search it out, but you don't get it pumped into your car if you're just browsing the biggest public radio station.