Well, it's a newish power niche that's getting exploited. (One (postmodern) interpretation is that it's yet another "society of control" in crisis. Basically,

Well, it's a newish power niche that's getting exploited. (One (postmodern) interpretation is that it's yet another "society of control" in crisis. Basically, the old tools that provided stability (social conventions, morals, beliefs/prejudices) all used to look like big formalish institutions, from family-school-factory-military-prison, and you were either in the system or completely out of it. But as this system of systems post-WWII has "eaten the world" it's now bound to face its own limitations, hence the crisis. Hence all the reforms, real and so-called ones.) The niche is (was) that most people has (had) only a super basic over-simplistic belief about language, which could be summed up as "something something the n-word". Instead of the more correct "when talking to/about someone it's very disrespectful to call them names they don't like".