It may have been too rash and/or simplistic a comparison to make, but there are some similarities, I think.

For example, here is Bill Cosby talking to a men only black audience:

Instead of waiting for handouts or outside help, Cosby argues, disadvantaged blacks should start by purging their own culture of noxious elements like gangsta rap, a favorite target. "What do record producers think when they churn out that gangsta rap with antisocial, women-hating messages?," Cosby and Poussaint ask in their book. "Do they think that black male youth won't act out what they have repeated since they were old enough to listen?" Cosby's rhetoric on culture echoes--and amplifies--a swelling strain of black opinion: last November's Pew study reported that 71 percent of blacks feel that rap is a bad influence.

This Is How We Lost to the White Man

Despite the title of that article, though, it is not just black American boys, but American boys of all races.  Although -- and this is purely speculation -- middle-class white kids are probably far more likely to grow out of it [Eminem notwithstanding], disadvantaged kids with fewer social and economic options are more likely emulate the images and words in gangsta rap culture in their own lives.

But again, that is purely my personal impression and it may be way off.

A language is a dialect with an army and navy.