black culture has the allure of rebellion because it has a claim as anti-authoritarian (system is fucked, racist cops, gotta break the law to survive - everyone's familiar w/ the narrative)

blacks are also the dumbest people, so their sensibilities are naturally materialistic. Bottom of intellect hierarchy; basest of tastes (rap song recipe: defeat your enemies, be the baddest, brag about how you get the bitches, money, guns, cars, drugs)

blacks also have a naturally good sense of rhythm, largely from the legacy of slavery. the history is actually fascinating but point is it's basically the ONE things their fathers passed on, lol

so key points about nigger rap culture
>anti-authoritarian
>self-aggrandizing
>booty bouncing beats
what's not to like?

it's a hypnotic mix design to appeal to your lowest nature. EVERY young man craves meaning (or equivalently, power) - black culture is a path of least resistance to this end. Many young men are disenfranchised with few aspirations, but to be black are you have to do is act the part. All you really need are clothes and music, the rest is connections. 

literally just imagine how many nigger he-made-it stories there are. "he was just a kid from the streets and he started rappin now he got a contract". It's true, just go on WorldstarHipHop and look at how many niggers rap and throw wads of dollar bills like toys, for hundreds of thousands of views. what values are being impressed upon the young viewers?

TLDR blacks culture is cool because it allows you to be your most sinful animal-like self and still be successful