I think it's important to look beyond today.
If we had a cease fire, and Isreal capitulated, a few hundred/thousand would live today. But this insideous conflict will continue until the end of time, unless one side is annihilated.
Isreal as a nation has demonstrated no desire to actually annihalate the palistinians. The converse is not true.
So you could argue that I'm arguing for deaths of x number of people. I'm not. Pragmatically, I accept the reality of the situation on it's face, and accept that there is no difference, ethically speaking, from someone dying today, to someone else dying 10 years from now; both are equivalent.
Do we wait until Iran starts mass producing nukes and gets several devices slipped into Hamas? Do we wait until it's an all out Iran-faction-nuking-isreal war that drags us in with all sorts of NCBE's in play?
Or do we perform the math, and say a lot of lives dying today, is far better ethically, than an order of magnitude over the span of time that this conflict will realistically continue on for.
War is NOT pretty. Innocents get murdered, in every war, because sociopaths serve in every military. Including by the US. In Vietnam, we literally murdered a few villages that had nothing but women and chilren in them. Servicemen literally shot babies.
We have NO moral authority to tell Isreal what the fuck to do with their own future. If they want to fight this war until it is over, THEY HAVE THAT RIGHT.
We fucking NUKED women and children in this country to an order of magnitude above and beyond anything happening over there with FAR less at stake.
I'm tired of the "but the children" strawman. Anyone that throws that out there needs a Trolly vs track scenario with one kid on one side "today" and a thousand on the other side of the switch, but further down the track.
Life sucks. Let them decide their own business. Maybe Isreal doesn't want to have murders and rapists right outside their cities for eternity, until such time as Isreal gets nuked. History is left with nary a memory of thousands of failed societies. I hope Hamas and the society it cultivates gets religated into that pile - with as few as casualties as possible. Realistically though, it needs to be as many as necessary to get the job done in a reasonable timeframe. Future deaths matter too - whether tomorrow, or 90 years from now.

