Imo, mocking hip-hop culture isn't mocking black culture.
Hip-hop having an alliance w/ any culture (in actuality) is only an interpretation. Since certain affluent African Americans have a vested interest in Hip-hop, it's labeled 'Black.'
Corporate America owns hip-hop and makes the majority of income off of it. Arguably, the origins of hip-hop come from sampling James Brown, the Isley Brothers, and Arethra Franklin, but regardless of how it started, it never really was a 'black' enterprise when it hit mainstream. There are too many labels involved who are making money off of something that is portrayed as temporary.
In a sense, the showy display of ones means of life is advocated by a lot of inner city youth, but when you look at their surroundings, most of these people have no money, no decent living quarters, and no real goals in life. Hip-hop is debatably symbolic of a party-lifestyle that is desired by most young people.
Unfortunately, most people in it don't realize that its current state, hip-hop strips them of any artistic credibility. How can you respect an art form where the no. 1 goal is money? I'd wager that 99% of the songs focus solely on materialism. [that's the problem w/ national radio today]-[it doesn't matter what quality goes on air, it just has to sound the same as the previous successful hit. Growth or maturity is little more than a marketing ploy.]
There's no real way to emulate(in terms of one attribute) 'black culture', 'white culture', or any other for that matter, because they're deceptive interpretations in the mind of the viewer.
Stigmas become reality, and people run w/ it. Honestly, hip-hop is little more than a sub-group in business. . . like the only legal monopoly: Sports(NFL, MLB, NBA, NHL), Hollywood/film-tv, Media. It's sole connection to 'Black Culture' (as people would say) is that it's marketed as such to give it "realism."

Any time you hear 'the struggle,' 'we gon' make it,' or some other bs attached, people are drawn to that affiliation w/ an underdog(figuratively speaking), and some identify w/ this. Again, it's just intelligent marketing.