I don't understand why people make such a big deal out of these voters. Maybe I'm just consuming the wrong media, but it feels like third-party voters get 50x the blame nonvoters get for ruining elections with probably something like a thousandth of the population. I basically never see this discussion call out both third-party voters and nonvoters equally.
I keep seeing third-party voters maligned for thinking a candidate has hope to win a national election, I see so many arguments to address why third-party candidates can't win. In spite of that, I have never come across any community anywhere where people collectively believe these candidates actually have a chance. People who consume crazy media can believe crazy things, that's why MAGA is a thing, but there's a whole Fox News etc media machine feeding those people. Is there a forum somewhere with more than ten people where there's a consensus that a third-party candidate might actually win? None of the third party voters I have known or met irl believed this, and I would be shocked if they're all weird exceptions.
Like, please, where are these people congregating to spread the ludicrous idea that a third-party candidate can win a national election? Looking on the recent green party posts on their subreddits, the only thing I see even close is a thread with a headline about "candidates are electable if people vote for them", where the furthest they go in the comments is a few people talking about how big a deal it would be for the party if they got 5% nationally, and a couple other people replying to say the greens won't even get 1% this year but the election is still very important because of some nonsense about incremental gains.
It feels like we've imagined a brainwashing machine that does not exist in reality, rather than admit to the existence of protest votes. Condemning protest votes means condemning protest nonvotes equally, and we'll never have sufficient information about protest nonvoters to reasonably make a claim about how they would have voted. That would severely muddy any attempts to assign blame for election results.
If you're trying to convince these voters to act differently, the way to do that would be to address the arguments they're actually making, like the incremental gains nonsense. If you're addressing arguments they haven't been making at all, then it's worth asking whether you're trying to convince someone other than them.