Tl:dr Older form-culture losing significance for a newer generation, older generation grumbles about young impetuous whippersnappers.
Like, rap albums have some incredibly clever use of a vernacular dialect of English. It's not "dumbed down" by any stretch of the imagination. It just doesn't conform to the expectations of certain groups of prestigious white-collar professionals and executives.
In a way it's bullying since an agreed upon style is now considered old by some but if everyone is not aware of the change how does everyone communicate respectfully?
It's fundamental communication that both sides understand each other's meaning.