Acting like its a mystery what would be morally tennable is crazy talk. You are pretending not to know and wasting everyones time. But sure, I guess there are kids becoming adults all the time so we can repeat it ..again...

At minimum: Follow the Leahy laws of not funding or supplying a country involved in war crimes. And following the same spirit of that law: Stop sheltering Israel from consequences at the UN.

recent reports are making it clear that Hamas is executing the hostages

Possible, but there werent all that many to start with and many are still alive. If they start killing them they will run out pretty quick. With the vast majority of structures leveled think how hard it would be to keep hostages alive, and think about whether Israel has been acting to get them back or keep them safe.