At this point, I don't think it would matter if Hamas did that or not. In the absence of external protection for Palestine and now Lebanon (and wherever becomes next on the list), the Israeli government's campaign to destroy Palestine will continue.
There will keep being a new objective, a new justification or excuse, until someone with sufficient backbone and morality puts a stop to it, or until a far-right, expansionist, aggressive government with objectives of occupation and annexation, ethnic cleansing, genocide and supremacy, gets what it wants.