Crisis and Hypocrisy

War is going on (again) in the middleast, Israel has invaded Gaza (again!) expect this time they arnt messing around like they did last time. Last time they invaded they let Hamas (the palestinian elected group) off the hook, sure they killed alot of people but they still left them over all intact, this time there are not going to let them off the hook.
The real hypocrisy is what hamas has said about "how dare the israely's launch missle at us, when only shoot small missle's at them". This does not make any sence at all to me, at all. I treid to switch around the arugment a little (when i talked with someone who had the opinion that I just mentioned). I asked him what he would do, if he had a neighbor in his country that kept shooting missles into his country, would you just shoot the same type of missles back or would you shoot back with bigger missles and invade there counrty so they couldn't shoot and kill innocent people in his counrty (and for the sake of it lets say that they where a jewish country and they didnt acknowedge your right to exist). I never got another message from his.
So what I was wondering is what your guys think (my loyal and nonexistent readers) what is your opioin on this? Do you think that israel is retaliating with thr right amount of force, and if so do you think it was right to invade and not let hamas rule anymore, even know its going to kill more innocent people that get caught in the crossfire? or do you think that that hamas is just in attacking and that israel should not do anything back. (if you do think this PLEASE talk to me, i dont understand how this makes sence, and im just trying to figure out that side of the arugment not flame you).