So... If she was to win the Democratic nomination and the general election (not likely but whatever). I know for a certainty that she will continue to fund the extermination of the Palestinian people
I am 100% on your side. However, until we fix how voting is handled in the US, we are stuck with a duopoly. We have to change FPtP voting first, get rid of the electoral college second, and get just a few more states to agree to the NPVIC. Until then, we are stuck with a duopoly, and thinking there's any other route for change (short of revolution) is foolishness.
When's the last time a third party candidate won a presidential election? 1861. 163 years ago. When was the last time a third party won an electoral college vote? 1968. Wallace (a segregationist, who appealed to Southern states) won a whopping 46 electoral college votes. He was so close! All he needed was another 221!
It's not possible today. So you grit your teeth and vote for the candidate that doesn't want to turn America into a dictatorship and has a chance at winning, and put your efforts into grass-roots changing how we vote in America. Find your local Ranked Choice Voting organization and volunteer. Work for real change, as opposed to meaningless gesture that no-one will notice.