that's exactly why we're still fighting the nazis and japanese. because occupations don't work.
this kind of defeatist attitude is ahistorical. we know how to do this because we've done it before: you lock the region down with a military occupation, you put the islamofascists on trial, you execute them for war crimes, you send the adults to re-education and then you teach the kids that their parents are wrong.
gaza is a way easier problem than japan or germany.
the thing israel needs is to embrace a marshall plan type mentality, but it's having difficulty doing that itself and it's being resisted by the west because some idiots think it's "racist". we know how to do this, but we are refusing to do it, and it indicates where the minds of many people really are.
things that would help israel include feeding, housing and educating the civilian population. blowing up a school that teaches the gazan kids anti-semitism is step one. building a new one that fixes the problem is step two, and they never seem to get to step two, but it's really not very hard to do it.