Let's establish the situation. There's only two outcomes of the election. Any other possibilities are so remote we can dismiss then.
- Biden wins. The status quo continues.
- Trump wins. More Palestinians and innocent children die.
There is a clear outcome here that is going to be worse and kill more people. You have three options on how to act:
A. Vote for Biden
B. Vote for Trump
C. Don't vote for either of them
If you pick A, 1 becomes more likely. If you pick B, 2 becomes more likely. If you pick C, 2 also becomes more likely because of the electoral college. If you pick A or B, you'll feel guilty. If you pick C, you'll (incorrectly) feel like you're innocent and not complicit.
You say you care about the people dying. That means you want the outcome with the least deaths, 1. If you want to outcome 1, you should pick A. Why are you refusing to?
No one here is delightfully voting for the genocide to continue. We want to stop it, but that isn't an option. Shouldn't we then act to minimize the death toll as much as we possibly could?
A child who survives in outcome 1 could die in outcome 2. If you don't strive for outcome 1, you have blood on your hands. Do you care more about having a falsely clear conscience, or do you want to save lives? It's very easy to say you want none of them to die. It's not as easy to take an action that you know will still result in people dying, but it kills fewer people.
If you are genuine in your convictions, and I choose to believe that you are, I am confident that you'll make the decision to try and save lives, at whatever personal cost to yourself.