Dude, rap does not affect people's thinking any more than any other type of music does. And a comparatively small amount is about the "bitches/cash money/platinum" bullshit; that's just the stuff in the mainstream. I know a lot of people who listen to underground hip-hop, and it's very political and aware...judging all rap by the MTV stuff is like judging all 80's metal by Poison and Winger. A lot of people who listen to rap are stupid, but they were stupid before they started.
You sound like one of those bass-ackwards semi-literate cavemen on Blabbermouth, talking about how black people are going to doom us all. Sure, they'll selfish; all humans are basically selfish. If the next generation of African-Americans are scum, so's the next generation of Anglos, and the next generation of Koreans, and the next generation of humanity in general.
What proof do you have that rap can be blamed for all these problems? You're worse than Tipper Gore with these unfounded accusations.