They do have a card to play: expose the savage, heart of darkness in Tel Aviv to the world. My guess is this will lead to a global revolt against Israel that will be impossible to overcome in today’s globalized world. Israel cannot be a pariah state and survive in the same way that North Korea can.
We have a bunch of liberal first world children screaming online about it*, but that's not going to do much. They were unaware of the conflict 5 years ago when they were 15. The people who move things know the story going way further back than Oct 8 2023. The adults are sick of the conflict and hold no more respect for Israel than they do for Palestine. Both sides have egregious violations, and tallying them is a futile and time wasting ordeal.
So the adults are ready for this to end. There is no choice winner, so the winner will just be the one who is stronger. The same way every other war has been decided.
*Granted, the Muslim world obviously has huge support for Palestine. But it's in word only. Palestine's "allies" pretty much said "Good luck bro" and then closed their doors. Probably because Palestine has the diplomatic skills of a toddler. Don't be fooled, Israel won this with diplomacy. Making friends with the right people and being a good friend to them will carry you far.