Seeing some posts from those on the right encouraging this. It’s often framed as an altruistic or moral choice.
Some recent history: Ralph Nader’s third party candidacy siphoned off enough votes from Gore for W. Bush to win. In 2016, Jill Stein’s candidacy siphoned off votes from Hillary and Trump won.
This is the only way the GOP got the presidency since the 1988 election when Bush 1 won. And the effects of these presidents—war, debt, and a degradation of American institutions to the point it led to an insurrection—should not be overlooked.
With things this close, a vote for a third party candidate often translates into a hand up for your opponents. And it doesn’t just apply to presidents.
It’s pretty clear which party is on the side of things like paid family leave, unions, even remote work. The GOP rails against these things to the delight of their corporate owners.
Voting for a third party won’t change that. But it might also perversely empower those you oppose the most.