How would you fare as a top world diplomat? Suppose you would be faced with the following scenario:
Your population is threatened with indiscriminate bombardment unless you let a terrorist group have a sea port. Do you:
A. Give the terrorists a sea-port, so they can acquire more rockets
B. Beg the terrorists not to fire
C. Let the terrorists bombard first, then consider non-effective retaliation into empty dunes
D. Eliminate the terrorists
Somehow - the answer to that question is illusive to today's global decision makers in US/EU/UN/UK and thus in Israel - they cannot proceed with the only viable reasonable option.