Try telling people you voted third party because of a deeply held conviction about not electing corrupt politicians. You will be told you are evil, that you've got an unreasonable/impossible purity bar, that you don't really believe in that deeply held moral conviction actually, that you are worse than the people who voted for the other guy, that you are a utopian idealist, etc etc.
Don't get me wrong, I did vote third party and I will continue to do so if the Dems put up candidates like Harris and Biden. But don't expect most people to be willing to weather the storm of vitriol they'll receive for holding a high bar for their politicians.