Even if I were to agree with this and I could oversimplify it to this one thing, under the current situation my vote is only meaningful if I choose one of the two. And there is a lot more at stake than a policy difference over support for Israel.
So how the rest of my days play out will not be affected at all by my choice to support Biden in the upcoming presidential election.
You, however, seem blinded by anger. Your third party vote on principle will unlikely free you from this anger. Maybe it’s time to look elsewhere.