We don't fight when the media talks about gang violence as if it's only a black thing, poverty as if it's only a black thing, Bad parenting as if it's only a black thing..... yet the second we want to take our rightful claim and say Hiphop is a black form of music... suddenly guys come out the woodwork and claim that we're excluding other people and it's an unfair statement.
Hiphop culture is available for everybody to enjoy and listen too, however EVERYTHING about this culture derived from black/latino culture, the messages are through the scope of black youth, the neighborhoods talked about are black, the specific struggles outlined are heavily endured by black people. So i'm sorry if a few people may have a problem feeling a bit excluded out of rap.
Black people feel excluded too, in the justice system, in the financial system, on a social scale etc etc. These literally weren't constructed with viewing black people as human and yet, 50 years later America still seems to exclude us and clearly refuses to let go of the notion that "America" is a country for Whites.