hip hop is a culture. it was the interaction and the shit people were doing in south bronx based around what DJ's and MC's were doing. those things were grafitti, b-boying, dressing in weird fashions, etc. MCing outgrew hip hop as a culture, now you can rap and not be apart of the culture or you can rap about shit just in the culture and that's what we like to call hip hop or backpack rap. (it's called backpack rap cuz all the fools who listened to that rap had a backpack full of cans blackbooks, markers, etc. relating to graff an element of hip hop).
The prevalent rap everywhere now, but especially on the west has been gangsta/hardcore rap and the culture it celebrates is gangsta shit (wheter thug bay area shit, or crip blood, ese , ene, whatever). And hip hop fashion and culture influenced gangbangin out west wheter fools wanna admit it or not, but where you think them fat laces came from, writing your hood with 3 initials like a graffitti crew, etc. So why hate hip hop? Most likely without hip hop gangstas wouldn't have such an aggressive form of music to voice they lifestyle. SHit alotta the original hip hoppers were gang members.