G-d help us all. I know you're right.
But paraphrasing one great Israeli statesman (or rather stateswoman), and adapting it: I don't hate them just for killing our children, or making us kill theirs. I hate them for killing childhood.
Man lost paradise through disobedience and arrogance, and sometimes I think, every day we lose a little more: when we give in to rage, or when we do not confront evil head on.
We should not be celebrating death. Nor encouraging our chidlren to. Nor should we fear it. We should face it, as a fact of life, and as part of the journey back to G-d. We should face our enemies with courage, resolution, fortitude, creativity and righteousness.
G-d save us.
Apply directly to the forehead.
This isn't about celebrating death. It's about fighting back. Maybe they should just stay in their bomb shelter and wait for "somebody from the government" to do their fighting back for them.