Homie, PLEASE. Elvis Presley was the Devil's music at one time... lol.

Take your head out of the sand and understand that art is a response to life. Music is a response to the experience of the musician. I'm happy you have lived a narrow and sheltered life... not everyone has.

Some people grow up surrounded by poverty, sadness, and violence. Do you really expect them to listen to Mozart string quartets, which were commissioned by Austrian monarchs to have played at parties at their palaces, waited on by uniformed footmen and maids, while the poor people starved outside the gates?

Obviously you've never listened to good hip hop with a compassionate ear, or a desire to understand what is actually being conveyed.
Do yourself a favor. Go to the library and borrow a copy of Public Enemy's 'Fear of a Black Planet'. Listen to it. It's an important album politically. Then listen to it again. Write down all the references you hear that you don't know WHAT the fuck they're talking about. For example '911 is a joke'. Google ALL of them. You have now gained some understanding that you did not previously have into the world of that particular group of artists.

See? Open-mindedness is good for ya. That didn't hurt too much. If you feel bad, next time you go see your local spiritual professional, talk to him about it. There's no penance that I'm aware of for enjoying rap music...

I gotta run. There's a really good mix CD in my car that deserves my undivided attention on the way home... It's got Nas, Biggie, John Forte, Outkast, Tribe Called Quest, Masta Killa, Ice Cube, and a bunch of other stuff that's making my skin turn red and sprout goat fur...