Set back in time?

Rap music came from original African American roots. Storytelling with a rhythm is basically what rap music started off as is. It is pretty upsetting that what started as a way of celebrating their roots, has now given off such a bad image with mainstream rap. A majority of mainstream rap/hip hop now talks about pretty offending things. It is sad because of that music, it gives a bad image to African Americans. Isn't it weird how rap started off as a way for African Americans to relate t o their ancestors, and now rap music basically fits all the stereotypes that African Americans have tried so hard to get away from? African Americans were once mocked for using poor grammar and being overly sexual. Now, the mainstream music really goes into those stereotypes. There is an awful lot of music that talks about sex, and women, and use words like "da" and even the N word. These are all things that African Americans wanted to get away from. Their rights were fought for and so I don't understand why they would do this. Do you think that this mainstream music sets African Americans back in their progress int he world? I feel as if it is just giving them the image they fought so hard to not have. It is pretty sad. There is nothing wrong with hip hop/rap , but I just think there is something wrong with the music that is constantly played. Why would America want to hear this?