This is about preserving a system that's at least recoverable in it's current state. If you don't vote for Biden your voting for an authoritarian regime and it's not even an exaggeration. Trump just had a promo video referencing a new Reich in America.
This is the easiest decision American voters have ever had. Go look up what happened when Trump was in power for 4 years and what has happened with Biden for 4 years. We have data on how they both acted in power. That's incredibly rare. Compare them objectively.
Moral high ground about Israel, while correct, is a hill compared to the mountain of evidence that shows what has happened and will continue to happen under trump if he returns to power. State secrets for sale, supreme Court seats, threats to never relinquish power, codified laws hunting down women who seek abortions, laws against trans and gays, j6 insurrection....you're actively supporting that by not standing against trump.
Abstaining from voting for Biden this fall is a vote for Trump in a first past the post system. You will be complicit. You will literally be responsible for violence against minorities having played an active part in helping trump return to power. It's hypocritical to allow that while condemning Biden on Israel.
I get it, I promise. I didn't vote for Hillary or Trump in 2016 and I see now what that ended up doing to our country. I regret it. I won't do it again.
It's impossible to reconcile your disgust for Israeli support from America with the violence you will permit to minorities in America if you don't vote for Biden. You're not wrong for hating it, but you must realize what you're going to do to people with a no vote or a throwaway vote.