Actually, 90 dems boycotted that speech. This also deflects from my argument that the situation in Gaza is going to become far more dire in a few months.
To answer your question, though: You know how there's around 2 million Gazans still alive? Starving and desperate, but still alive. It's not just us, but the whole international community that is responsible for that, otherwise Netanyahu could've implemented his "General's Plan" six months ago. Nothing except international leverage can maintain those lives. Leverage is not free, though, it must be purchased somehow. People do not just listen to you otherwise, unless they get something from it. While it would be theoretically possible to attempt sanctions, doing this to an ally during war would be political suicide domestically, resulting in a different administration and reversal of the policy. This would result in their eventual deaths anyway, simply after a delay.
Not that our current timeline is looking any differently, admittedly. But actually saving them is not nearly as simple as everyone seems to think, as if some total boycott of arms to Israel would somehow quickly lead to an Israeli military defeat. Advanced munitions are not necessary for a genocide, it can be done with napalm and the withholding of food. This would not be expensive. Nor are advanced munitions necessary for the continued survival of the IDF, which numbered around 400k strong in the initial stages of the war.
Defeating this genocide is unfortunately far, far harder than people make it out to be, due to a powerful faction of domestic support among American citizens and AIPAC lobbyists.
