What's your solution for the problem? Voting for someone who doesn't have any chance of getting elected? Or would you rather vote for Trump, who is encouraging complete annihilation of the Gaza strip by Israel to end the conflict overnight, while also vowing to end all support for Ukraine and back Russia in a second genocide? Personally I'm going to cast my vote for a candidate who can prevent Trump from getting back in office again, where there might be a slight chance of pressuring some change in Israeli policy. Unless you can somehow convince 300million Americans to vote 3rd party in the next three months, no other choice has any possibility of helping anyone, and fewer votes against Trump risks a much larger number of people being killed directly by US policy.
Where do YOU draw the line when there's no way to win no matter how you vote? I draw the line at trying to reduce the number of casualties first through my vote, and then seeing if there's any way to move forward to make things better.