The Cosby Show’s affect on racism has always been greatly exaggerated. I suppose there were white people who watched the show and had some great epiphany about racism, but this was an upper class family fronted by a lawyer and a MD. They were wholesome as hell, more than just about any real life family. I doubt that overall, the racism needle was moved in any significantly positive way.
For white people if a show like this was needed just get you to see Black people as “normal,” it’s likely that person was pretty extreme. Lots of even racist white people would have been happy to have the Cosby’s move into their neighborhood, but but the problem is, 99% of Black people aren’t the Cosbys.
i can’t even say that I believe the Cosby Show didn’t actually do more harm than good overall. At the least the show gave cover to racists who could point to their love of the show as “proof” they weren’t racist, while at the same time, doing and saying the things racists say and do.