The question is, what are you doing to make a difference there? Are you going out and protesting, are you actively seeking out local politicians?

You’re obviously passionate about the innocent people being hurt and killed, so I bet you are, but you could keep doing that while voting for the “lesser evil”. You could have cast your vote for Harris and then on the same day gotten right back to protesting against her policy on the war.

You have two parties that are bad, but one is obviously worse. Why not try to avoid the worst option, so your personal efforts are more effective?

It’s like trying to run a marathon and by abstaining to vote you get both your legs cut off instead of only one, because you fundamentally disagree with people getting their legs cut off. That’s a totally sensible stance, but getting to keep a leg still makes it easier to keep running and there is no secret third option where you get to keep both.