I lost some respect for jables here, the way he's seemingly throwing Kage under the bus.. But at the same time I can recognise that JB has always tried to keep up a positive persona. Not apolitical but he's never been the type to promote violence directed at specific people. Kyle did him kinda dirty by doing something to potentially harm that (assuming he was truthful when he said he was blindsided by it, and not just saying that after it blew up in the news).
Not saying Kyle is wrong and Jack is right here, though. I've always felt a little bad for Kyle that Jack put tenacious D and therefore Kyle on the sidelines when his Hollywood career took off. Kyle was rightfully quite jaded about that and I wouldn't be surprised if that's led him to doing this without considering the possible consequences for Jack.
The whole thing sucks for both of them, I guess.
It goes both ways though. Kyle should also know his friend wouldn't be happy about potentially losing his career over calls to murder a person for political reasons.
Disclaimer: I fucking hate Trump and wish he was killed years ago so I'm not saying I disagree with what Kyle said, I'm just disagreeing with when he chose to express it because he was there representing tenacious D which extends to jack as well. I'll also add that at this point I worry that killing Trump now would only replace him with someone actually competent to drive the fascism train over the tracks that are already firmly in place, but that's a different discussion.