If it is not incredibly obvious that Trump would do far worse than token support of Israel, then you are either not paying attention to the things he says and does, or you seek to intentionally downplay the things he says and does.
He would, first of all, continue to arm Israel. He would also move onto University campuses with feds to arrest people protesting the war. And he would use this as a premise to escalate tensions with Iran. He has stated all of these things many times. Passive support for Trump objectively and unambiguously accomplishes none of the things you profess to value.
If you want to repeat the mistakes of 2016 in letting the perfect be the enemy of the good, then I assume you either so privileged that you don’t believe you will be affected by American fascism, or you are a troll. However, I apologize if you are just naive.