“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.”
If voting for Democrats makes you complicit, then the net is cast so broad that their hands are absolutely not clean either. If they are supporting the state in any way, such as by paying taxes, then they too are “complicit” in much the same way.
It’s a vanity vote. That’s it. It allows them to pretend they are morally superior, without actually having to do anything.