That's not true. Afropunk was a response to the question you pose. White people stole the rock from Black kids the way Ancient Greece stole the Hippocratic Oath from African culture. It is almost the same. Today, it's almost impossible to know Bo Diddley, Sister Rosetta Tharpe and other Black pioneers created rock in almost it's complete form. "History is written by the winners", they say, and our cultural memory is like a hard drive which has been written over. Show the typical rock fan footage of Black women going hard at a rock guitar in 1955, and they will profess shock. The re-writing of history has been successful. The "analogous new rock scene" you are searching for is called rap. It is rock music without guitars and for years in the early days, without white people. Think about Run-DMC in 1982, and how "punk-rock" they were with the stripped down sound and hard lyrics. Black artists were hounded out of rock music by racist promoters and a hostile music industry, and their answer to it was hip-hop. The history of Black music has been of flight, an attempt to escape white cultural aggression stealing their music and style without accreditation or compensation. Promoters defunded and starved out Black performers, and the answer to that is two turntables and a mic on the underground, sound systems plugged into street lights - where they can't get defunded, have control, and have no white people. The Beatles up until 1964 were almost identical to the Isley Brothers but racism in the US was so entrenched that Americans had to re-import the music on their doorstep being made at home through 4 white kids from Liverpool. How ironic is that?