I think the Palestinians people are mostly concerned about the deaths of, no one at all is arming. They're just starving to death, unarmed, in quiet desperation, in their homes or in the places they went to when their homes were destroyed.
Israel currently has enough weapons stockpiled that they could continue the genocide for several months before they'd need to consider changing tactics. I don't see what use sending them additional weapons/munitions does - just stick it in a warehouse until they need it next winter? It's just a visible show of support right now.
Cut off that support. Let Israel swing in the wind without unconditional support and maybe they'll finally start pulling back from all-out extermination. Make sure any future shipments are bound with enforceable limits on their use, like the US has on almost every other arms shipment it makes. And take whatever we were going to send to Israel for the next six months, and send it to Ukraine, which actually is fighting a war for it's very survival against a much larger adversary.