The real question is, can you dance to it? This is how rap developed into hip hop: It became a medium to accompany dance. It might not be as complex or melodic as most other genres, but guess what? It's not supposed to be. But does that make it "suck"? Not if people like it. Not if it gives them joy, or an outlet for their creativity, or, in many cases, for their anger and frustrations.
If it "sucks" or if it isn't musical enough for you, then that's too bad. It is a very legitimate musical genre, and its influence is far-reaching and is having a huge and often positive impact on communities around the world. If it can generate this much energy, all I can say is it isn't going away anytime soon: