For some of us, chanting (often violent,sexist and indeed racist) doggerel over drum machines is not really a serious attempt at making music - thus rendering the expression "rap music" a contradiction in terms. I personally loath it, although it may be defensible as a form of folk "music" on the basis that it now has a tradition stretching back some fifteen years. Fot me it's a very good reason to turn off a radio.
Now I am going to put my head down and duck for cover - because I know there is something unfragrant and messy coming my way!