The call where Biden urged a ceasefire and Netanyahu completely ignored it? I think you think the US has more power in this situation than they actually do.
The US provides about 1% of Israel's GDP in military aid and Israel already exports weapons and ammo it doesn't need. Who would provide American-centric weaponry is irrelevant to the question of whether the war would stop.
To add to that, it literally doesn't matter who steps in to aid Israel, as the aid itself is less important than the potential ally and the strategic act of robbing the US of influence in the middle east. You think Russia or China wouldn't stoop to changing their position on a massacre to get a step up politically? Two countries currently hosting genocides of their own?
A magic stop button doesn't exist for the US. We're clearly not going to agree on that so this is where our conversation ends. Goodnight.