“Jill Stein is a useful idiot for Russia. After parroting Kremlin talking points and being propped up by bad actors in 2016 she’s at it again,” DNC spokesman Matt Corridoni said in a statement to The Bulwark. “Jill Stein won’t become president, but her spoiler candidacy—that both the GOP and Putin have previously shown interest in—can help decide who wins. A vote for Stein is a vote for Trump.”
Or maybe its a case like Joe Rogan and Assmongold who say they’re left-wing while extolling far-right narratives and conspiracy theories (and sometimes outright anti-scientific folly like 1×1=2), basically using it as a manipulative talking point to mislead their millions of followers (the vast majority of whom just happen to be white men with proto-fascist views of the world)
Either way, when I see it, I realize that they have lost the plot and aren’t arguing in good faith.