Everyone has flaws. Bill Cosby's were horrific but far less than another Bill who has yet to be cancelled by the Left and Cosby did great things for the black community (outside of the drugging and rapes). His "Fat Albert and the Cosby Kids" series still has a lot of great life lessons for kids (or even adults). They are admittedly harder to watch knowing what he was doing at the time but I still think we can enjoy/praise the good stuff while condemning the bad.
I have a sneaking suspicion that Cosby's predilections were known but covered over by many in power until he started differing from the powers on the Left pushing irresponsibility and racism. He didn't praise Barack Obama enough, wasn't buying the "riots for race" arguments, so they got rid of him and shamed him.