You're quite a bitchy queen, aren't you?
While black blues (and country) spawned Rock 'n' Roll which in turn led onto great things like the Beatles-Stones-Bowie, then punk and indie, black musical culture has been stuck in a cul-de-sac for well over 30 years. It hasn't innovated or developed in any noticeable way since NWA and Public Enemy.
All current British rappers ever do is play victim, whining and complaining about racism. The whole scene is so infantile and imbecilic it makes me want to vomit.
Black culture's most prominent contribution to my city has been machete stabbings, county lines drug dealing and endless rapes and robberies. They crapped all over America's cities from the late 60s onwards and the whites had to flee for their safety, so this is something that has already been played out in your own nation. The introduction of 'black culture' upon a city seems to be identical wherever that city happens to be located on the globe.