Why don't you rather focus on Israeli's government who probably organized the "Threaten Israel's Existence Club" Israel, like the US, has all the means to remove any treats to its existence. The question is why they don't use them. Every other country in the world would not hesitate to use everything on its disposal to achieve victory over its enemies. Israel chose not to do it, so Israel is paying the price, and no one is to be blamed but Israelis themselves who chose rather to play politics than to defend their country and their people.
But Israel's being this way at our behest. Sure, that doesn't make them blameless, but most of us on this forum don't vote in Israeli elections; we vote in American ones.
1. The US will not allow it.
2. If it goes ahead, US anti-Israel State Dept. would place sanctions on Israel, etc.
3. Israel would lose US support in UN, so US won't veto anti-Israel resolutions and UN troops might be sent in there.