My background was nuclear warfare. We were informed that Israel cannot afford nukes near Israel as she is a small territory, and any war where they will lose and another country takes their land results in nukes on the enemy lands.
So, a war breaks out, Israel responds, if overwhelmed then Israel uses nukes.
The problem is Israel is notoriously liberal. Liberals have a hard time unleashing nukes. Nukes need to be used decisively. I think Israel would use nukes far too late, if at all.
The far too late, if at all, usage is my take on it as well. Perhaps hardliners will take firmer control as a result of the latest attacks.