You can only conclude this on the basis of projection.Rap music is the express lane to destroying black culture.
Do you get influenced by violent movies, sports and video games?
Do you lose your culture because of them?
Do the shows you watch on television shape your entire essence?
If not? Why on earth would rap music be guiding anything black people actually do?
I don't think it's the music itself, but rather the image a lot of young Black men in the ghetto aspire to, so they interpret the messages and attitudes contained within the lyrics as a means of achieving that image, wealth and status.