Hosts Michael Che and Colin Jost kick the dethroned sitcom queen when she's down. Hard.

There’s an unofficial rule in comedy: Never punch down.

That means joking about the disabled, for example, is frowned upon in more ways than one. Progressive comics expanded that old saw to include those in society they perceive to be victims of western culture.

None of that stopped dethroned sitcom queen Roseanne Barr from getting crushed at the Emmy Awards telecast.

Hosts Colin Jost and Michael Che trotted out the usual Nazi references during their opening monologue. It’s comic shorthand for, “hey, that President Trump is bringing the Third Reich back” without actually mentioning his name.

Then they ran down Barr, who lost her eponymous show, and likely her professional career, in May for a racially charged Tweet mocking former Obama administration advisor Valerie Jarrett, who is black.

Barr lost her signature showcase, the untold millions she’d earn from its continued success and her good standing in the Hollywood community.

All for one single Tweet.

Her subsequent apologies didn’t help. Show business cast her out. All the while, stars who said much, much worse didn’t receive so much as a wrist slap:

That’s only a partial list.

So naturally Che and Jost slammed the disgraced star during their monologue. Even more odd? The Barr kerfuffle happened months ago. The news was hardly topical. The “Saturday Night Live” regulars insisted on smiting her all the same.

“Roseanne was canceled by herself, but picked up by white nationalists” Jost said.

“She’s had a rough year… I heard Roseanne’s actually moving to Israel. How messed up is your life when you have to move to the Middle East just to get peace of mind?” Che added.

The duo then chuckled over the show getting (mostly) blacklisted for Barr’s single Tweet.

“By the way, congratulations to Laurie Metcalf. You know how great an actress you have to be to get nominated for Roseanne now? That’s like nominating a cop for a B.E.T. award.”

What’s more galling about the attack? Barr paved the way for powerful women in Hollywood. She ruled over “Roseanne” during its heyday, showing Hollywood she could stick to her principles and draw a crowd.

One wonders how many young, impressionable women drew inspiration from her pluck.

That doesn’t capture her impact on pop culture and Hollywood. Comedian Norm Macdonald, who served as a writer on the show’s successful return earlier this year, said Barr actively hired hire minority writers during the show’s initial run.

Co-star John Goodman, long after her firing, insisted the Barr he knew couldn’t be racist.

None of that mattered.

And let’s not forget why this happened. Barr’s politics have been muddled for some time. She previously attempted a presidential run on the Green Party ticket. That effort became a 2016 documentary “Roseanne for President.”

More recently, she embraced some of President Donald Trump’s policies. The final nail in her professional image? She made her rebooted “Roseanne” show a place where conservatives wouldn’t be mocked without a fight.

Her idiotic tweet sealed her fate. ABC showed her the door in short order.

Monday night, the Emmy Awards telecast slammed it repeatedly on her while the crowd helped them punch down.


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