So does Pakistan. That's not exactly a nation friendly to Israel and they can be bought with relative ease. A nuclear strike from Israel would prompt retaliation and escalation into a global conflict. Iran would love this. Bet Russia would jump in.
Is Isreal's nuclear capability enough to disuade escalation? Islamic nations have no qualms with sacrificing their own for Allah. It's the reason only the preverbial adults should have nuclear weapons. They would use the judiciously. But it would not be justified under any circumstances in the global media regardless of whether it was truly a "last resort" for the survival of their nation. I fear a global retaliation would ensue against Israel.
I hope this does not evolve into a "no-win scenario" for our brothers and sisters in Israel.
Personally, I think you are very mistaken on this. There is too much history (personally, with American Jews even though they vote liberal) for an Israel/Pakistan question to fall on the side of Pakistan. No way. Too many questions about Pakistan's involvement in support of Taliban, Al Qaeda, harboring Bin Laden, et al. You also neglected INDIA who has an itchy trigger finger with respect to Pakistan.