I disagree somewhat. White kids do think being in gangs and selling drugs are cool. That's why that music is so popular because White people buy it up. The difference is that many of them have a good enough foundation in life that they don't have to go down that road. As cool as they think that lifestyle might be, everything in their lives pushes them towards being something better.
I don't think the problem is that we promote the bad shit in our culture too much. I think the problem is we don't promote the good shit enough. We have black scientists, doctors, engineers, attorneys, etc... all doing big things, but you never hear about them. All black people promote is athletes, musicians, actors, and other entertainers.