I don’t know about the temple.
But I’m certain that Israel will survive.
I believe that the world’s most advanced nuclear weapons are in the Israeli inventory. This would include very small, very low-yield neutron devices that can be delivered by artillery, cruise missile, drones, and placed as land-mines.
Israel has a particular need for low-yield neutron weapons since any future desperate battle is going to take place either very near Israel’s borders or even within those borders. There is probably an Israeli neutron device that a man could hold in one hand.
And Israel does not have merely atomic weaponry but compact thermonuclear devices. They probably have thermonuclear weapons deliverable by submarine using cruise missiles. These probably have a selectable yield of roughly 50 to 800Kt.
Why would anyone doubt Israel’s nuclear arms abilities? A bunch of Jews invented the things after all.
Your surmisings have substance.
The prophecies will be fulfilled, we have but to apprehend them.