Netanyahu will hold firm as long as the Israelis and the cabinet keep pressing him to expand the operation and wipe out Hamas. If support dwindles, then in my opinion so will his backbone.
Fortunately, Israelis of all stripes, including the leftists in the government and even at Ha’aretz, the leftist newspaper in Israel, are openly contemptuous of John Kerry and his advocacy for Hamas and its sponsors Qatar and Turkey. Even Mahmoud Abbas, who many, if notost, Istaelis believe is a sub rosa enemy of Israel, is furious with US foreign policy at this point.
What's next?
North Koreans refusing to sell missiles to Hamas if they deal with John Kerry? Maybe there's hope after all...