First of all, the way "well, they voted for them" is sometimes used is morally repugnant. It's true that Hamas is the current elected government and military of

First of all, the way "well, they voted for them" is sometimes used is morally repugnant. It's true that Hamas is the current elected government and military of Gaza, with all that implies, but that says nothing morally about the duty to not target civilians (and the duty to protect them). That all said I think you're wrong about the history here. Hamas was always very anti Israel, they specifically stem from an islamist tradition which consideres all of Israel to be occupied territory and that all Jews must be removed. They are one of the big factors in destroying the Peace process by launching many terror attacks to destroy it.