True and abhorrent racism isn't everywhere, but it is endemic in most societies. And the vast majority of people who have reached 'celebrity' status for their writing on the subject have written because they felt a pressing need to do so, not in order to profit from controversy. If money is your bag, there are far easier ways of making it than trying to become a successful author.
I don't want to name names because for many of the people, breeding controversy is not their only goal. However, the Westboro Baptist Church and various notable Fox News celebrities (the ones who frequent the monologue of The Daily Show) are two cases where there is nothing going on except for profiting from false controversy.
Like I said, they are few. But they do exist, and they do irreparable harm to the discourse of political correctness by feeding off the fear that a group of people has of discrimination.
