Because his purpose, as a human wrecking ball, is to light the world on fire. Alternatively, to one big fire, is to light many small ones... he effectively has done the latter. If it appears that the world is less in flames, he'll start new fires. He does not want Israel to defend itself, and certainly does not want Israel to be successful at defending itself.
Let me correct myself before someone else does: His alternative to lighting one big fire is to light many big fires..