In the decades since there has been a deep schism. There were members who honestly saw themselves as muslims trying to build small businesses in Harlem (Your Bakery, Your Dry Cleaners, Your Grocery...). They threw out the thugs and gangsters. The thugs and gangsters just set up shop elsewhere and continued their criminal activities under the black muslim banner.
These Oakland gangsters are as muslim as Mary Poppins. They are nothing but criminals.