This particular vote is an "A\B" question. No matter what you do A or B will be chosen. All other "choices" will be ignored and will have 0 effect on the outcome. The only thing that matters in this vote is who wins.
Not voting at all, or even voting for C, both have the exact same results as voting for whoever wins.
So if you choose not to vote, and Trump wins, then you created the same results as if you had voted for Trump.
If you wanted to vote against Biden but did not want to vote for Trump then you should have voted in the primaries to defeat Trump before he was the only alternative to Biden. In fact, of you had blocked Trump from being nominated again, Israel would not be doing what they are doing. Israel actively wants Trump in power, so that is why they are doing this now.