There's a lot of useful nuance in that Guardian article; it's not exactly that simple
But also:
The Israeli prime minister said ... "I told him that I hope we would do [Rafah] with US support but if necessary – we will do it alone."
Promise? Because that sounds like a good step.
The US upholding its nominal commitment to international justice and hauling the appropriate leaders to The Hague sounds better, but Israel doing it alone if atrocity is this big a core value for them sounds like, at least, a step in the right direction.
Realistically we should stop funding them in general. But it's become a great way for congressmen to get an unofficial pay bump. They vote to send money etc to Israel. Then Israel uses that money to "lobby" them.