Even if it's not serious it crossed a line WB. Ask Kathy Griffin, literally a comedian who is still probably getting death threats for her stunt. If this had been reversed with it being at something like a Warren campaign event with Trump being murdered on a video I don't think you would be saying it wasn't serious.
AS I SAID, Biden, Kamala Harris, Cory Booker, Maxine Waters and others have already made comments that they would like to beat up, physically attack, or perhaps even imply killing Donald Trump.
NOT as a joke,
NOT in a humorous context.
I think the huge problem with Kathy Griffin is that her holding up a realistic severed bloody head of Donald Trump was never funny, I don't think even intended to be funny, it was an expression of pure hatred for Trump using her status as a celebrity, not as a comedian.
AND she was working as a news commentator at the time for CNN.
You don't hold Democrat political leaders who have threatened or advocated violence against Trump or other Republicans to the same standard that you do Kathy Griffin or a silly spoof video.