I'm all for eliminating the two party regime. Voting third party in this election doesnt do that though. Best case scenario, a third party rises up in popularity, displaces one of the major parties, and takes its place as part of a new two party system, and eventually becomes as polarized as the party it replaced. It is inevitable in FPTP voting systems because the alternative is to have ideologically similar parties spoil the vote for one another so that neither ever wins any election again. Nuance does not exist in FPTP, as shitty as that is.

Instead of just voting 3rd party under FPTP, advocate for voting system reform like I do. Ranked Choice, Approval voting, etc. They are all objectively better than FPTP. They offer you the ability to vote for your most preferred candidates with less or no spoiler effect. Even in the worst case scenario in those systems, where every single person votes cynically for only a single candidate to "maximize" their candidate's chances over similar candidates, that is still functionally identical to just returning to FPTP. Yes, our current system is literally the worst outcome of other systems. There has been some traction with this recently. As of 2022, 62 jurisdictions in the US adopted Ranked Choice voting. If everyone gets on board and calls for these reforms, they can and will eventually happen.

But as it is now, best case is your 3rd party vote wont make any difference and whoever was gonna win anyway wins without your vote. Worst case is your lack of vote for your preferred major party candidate contributes to the win of your least preferred candidate. It's your vote, do what you will. But don't pretend like the rest of us are rubes for behaving rationally with the existing voting system.