That and there are no advertisers on Maher's show. She was fired over her support for President Trump. That's pretty obvious. What is more subtle is the racism of those who are criticizing her, apparently her critics ascribe to the one drop rule. Note how Roseanne is actually lighter skinned than Valerie but for progressives she is black.

Note the ape woman in both planet of the apes movies was played by a white women. Roseanne didn't do anything wrong.