To your last paragraph, as I understand it, 9/11 was also moreso caused by lack of intelligence being acted on properly, rather than being completely blindsided

To your last paragraph, as I understand it, 9/11 was also moreso caused by lack of intelligence being acted on properly, rather than being completely blindsided. Of course, it may be that all the surveillance measures could mitigate future terrorist attacks, but in reality the cost is high and the benefits are empirically not great. I think that if Israel withdraws now and focuses on defense, it may not prevent (civilian, primarily) deaths entirely, but it will be more workable for a lasting truce in the future. I don't want to say that those deaths would be a "sacrifice" or "necessary evil", but it is a realistic cost, as unfair as it is.