And how many Israelis will die in the process? And if by odd luck Israel actually "destroys" Hamas, exactly what will replace it? Hint 1 - it will NOT be Fatah. Hint 2 - the leader of the group that will replace Hamas is living a very comfortable life in Pakistan after he rearranged some real estate in NYC and humiliated the US in Afghanistan (just like he humiliated the Soviet Union in the same place). "Destroying" Hamas would cause Israel even more problems than it already has.
from the article: Netanyahu presses for U.S. action over Fatah-Hamas deal