The ability to defend is part of the power we are speaking of though. That’s like saying Israel doesn’t have power because if it didn’t have power it wouldn’t have power. The point stands that because of this ability of defense and superior security, Hamas doesn’t do much damage. The same cannot be said of the other side. We are not arguing about Hamas being evil or not, we are arguing about how much damage can they make given the power of Israel. The threat is not existential bu any means.