Is hip hop music angry in tone?

Sorry for the absence from posting. I have had a lot going on.

I came across an excellent conversation on between John McWhorter and Ta-Nahisi Coates that began by discussing hip hop music and then ventured into the role of race in our nation. I would highly suggest taking the time to listen if you are interested in the influence of hip hop music or on issues of race. You can find it here. I am a big fan of McWhorter's books and I found myself agreeing with a lot of what he said, but also found great insight from the perspective that Coates offered.

One of the points that McWhorter makes is that a key element or central ingredient to the genre of music that is hip hop is anger/rebellion/a sense of disrespect of authority. Because of that, he suggests that although it may express emotion it offers little in terms of solutions.

What do you think? Is hip hop music, at its roots, angry?