what does hip hop have to do with uncivilised behaviour?

A lot actually. Young boys to grown men walking around with their pants hanging low below their butt, showing their underwear like they don't know where their waist is. Calling each other niggers, filling their mouth with blinging jewelery etc.... the list goes on. This hiphop shit is outta hand.
Uncilvilised: crude, barbarous, wild, uncultured; used to describe people who display a marked lack of manners as defined by a given culture; used to describe behaviours deemed savage or inappropriate
- walking around with their pants hanging low below their butt (uncivilised? really?)
- showing their underwear like they don't know where their waist is (let's start with all the chicks displaying crack first...)
- Calling each other niggers (this is your only valid-ish argument. and even then it's got holes.)
- filling their mouth with blinging jewelery (let's revisit that definition of uncivilised, shall we?)
I don't do any of the above, except for calling niggas niggas, but I would hardly call these things uncivilised.
To think I'll never get any of these minutes I've spent on this back...