Because a "win" condition for Israel is that it gets to continue to exist.

If it stops now, that would be a "win", evidently. Though, as pointed out by another poster, there are internal politics to consider.

One thing that discussions of the conflict often leave out is the possibility that there will never be an end to the fighting as long as Israel exists. It may be that there's no way to reconcile the two conflicting goals of Palestinian self-determination and Israeli existence.

Well, the Israelis have to take some responsibility for their illegal settlements. But, yes, there are elements on each side that believe the other side has no claim to anything. Some Palestinians want all of Israel as part of Palestine, some Israelis think that the remaining Palestinian lands were promised to them by their deity. There are a lot of folks in the middle (on both sides) who would be good with peaceful coexistence. As pointed out months ago, most Palestinians of voting age had never had the chance to vote. Hamas was voted-in, and pretty much canceled democracy after that. I don't know if that would qualify as "self-determination", in which case I don't think we've had a chance to see what that would like for Palestinians.

I suspect that the continued Israeli bombing is creating new Hamas members every day. Unless they (Israel) plan to commit to a genocide, they really should stop. Of course, genocide is an option. But, again, a PR nightmare.