No matter who wins the election next week Israel will continue to receive effectively infinite financial support, munitions and military intel from the USA. It's unlikely they will need US troop support but if genuinely threatened I have no reason to believe they wouldn't get that too.
There's only so far money can take you. US recruitment numbers are low and the empire is being challenged on many fronts...plus the hate against Israel is going to the moon.
Support is definitely down, but even on the Gaza conflict where Israel has been generally accepted to have met the criteria for a genocide only 31% of Americans say they've gone too far as of Oct 1. Importantly US political leadership is steadfast in their commitment to Israel. https://www.pewresearch.org/short-reads/2024/10/01/slight-uptick-in-americans-wanting-u-s-to-help-diplomatically-resolve-israel-hamas-war/
I am not saying Israel will be wiped out, but it's loosing right now. Security for Israeli citizens will continue to deteriorate.
We'll see.