Cosby threatens the lucrative racist hate-mongering industry led by Wright et al. Their whole schtick is based on the lie that whitey is keeping the black man down.
As you can see from this article, any suggestion that blacks can better their situation the way everyone else can better their situation, and that blacks no longer can pin their status on long-ago discrimination is met with howls from the racist hate-pimps.
There is likely to be a riot but maybe not between Blacks and Whites. It just might be between progressive Blacks who see themselves being kept down and the thugs who seem to hold sway today.