The committee has largely kept quiet about the Green party nominee. But that’s now changing.
“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 even if they showed up outside of an electoral context. The green party has some local elected officials in a few places across the country, none of them very close to me so it's hard to inform an impression of them.
But it doesn't seem like, at least outside of those few folks, that the green party is very interested in any aspects of politics besides running in elections. If Jill Stein was criticizing Biden or Harris for the last four years, trying to get them to move to the left, or organizing groups of people to accomplish anything other than voting every 4 years... Her rhetoric points towards making real systemic change, but her actions suggest someone only invested in being a presidential candidate within the status quo. And the green party keeps nominating her for some reason. That doesn't seem like what a serious party or candidate would do, or should be doing.
They exist, fundamentally, to be a threat to one party or the other.
Sounds like that's the idea you got of third party from the propaganda, because they talk about them exactly when they become a threat and not the rest of the time. Government and a bunch of rich guys own all mass media.