Imitating her idol Trump by being a vulgar bigot didn't work out for Roseanne the way she likely thought it would.
The move ought to send a signal to the rest of Trump's fanbase that the rancid prejudice and hatred put on stark display by Barr is not welcome in mainstream American culture.
Early Tuesday morning, the right-wing actor and outspoken Trump supporter created a fury when she posted a now-deleted tweet comparing former senior adviser to President Obama, Valerie Jarrett, to apes.
Responding to a thread about Jarrett, who is black, Barr wrote, "Muslim brotherhood & planet of the apes had a baby=vj."
Barr also tweeted out heinous, anti-Semitic conspiracies about billionaire George Soros.
Actress, writer, and producer Wanda Sykes quickly announced she had quit "Roseanne." And soon after, ABC canceled the hugely successful reboot of the 1990's sitcom.
The spectacular implosion of Barr's show, and the fact that the implosion revolved around Tuesday's over-the-top anti-Semitism and racism, simply confirms how misguided it was for ABC to help revive her career this year.
Prior to the "Roseanne" reboot, Barr had established a long record of online postings that were shockingly hostile and hateful. Why the American Broadcasting Company would want to be associated with that remains baffling.
But leaning into the idea that Barr represented Trump's supposedly forgotten America, the everyday workers who aren't part of the coastal elites, "Roseanne" was treated as a cultural, red-state touchstone.
"Look at Roseanne, I called her yesterday. Look at her ratings," Trump said after the sitcom reboot garnered big TV ratings. He bragged about the show, saying, "It was about us!"
Now, the show that Trump himself said was about Trump supporters has been canceled due to its star's virulent bigotry. But he likely won't boast about that.