Do you think Israel would ever choose to lose willingly if winning proved to be too costly in human life or their own humanity?
Israel seems willing to sacrifice everyone and everything in order to win. How are they different?
I think that is overstepping it a bit. Israel has not demonstrated, in my opinion, a scorched Earth technique. I think the trouble is Israel is managing Gaza like it is a military and religious issue instead of a political one, and Israel isn't alone with that. Sadly, Trump fucked up the Iran deal which would have been a useful first step for a dual pronged Iranian/Saudi rework of the Middle East. But the Saudis didn't want the US getting closer to Iran. Indeed, the trouble in the Middle East stems from the Middle East itself and the inter-political/religious issues amongst themselves. And we kow it isn't even that unified within the borders, hence the authoritarian stuff to both keep out democratic/modernization dissent and terrorism.
Israel is a useful distraction for them. It is one of those, 'they don't need an actual outcome' for it to work in their interests. They just need a distraction.
Ultimately what happens in Palestine, no one cares about. Look at Syria. You see Iran and Saudi Arabia lining up to invest in it? The Middle East is funny. They hate each other as much as they hate us.