Osama bin Laden is apparently more popular in Egypt than Barack Obama. I don't fault our President for this; it was likely true under Bush as well. The short of it is, just because Egypt tossed out their autocratic ruler doesn't mean any democracy that arises will either love us, the Israelis, or peace. And it is far from certain that this will actually end in democracy rather than some sort of military junta.
I think the mess that is the Muslim world is going to bite us again before too long. Frankly, it bothers me that roughly 1/6th of world belongs to this backwards culture. Islam may have been the bees knees in the Ninth Century, but it hasn't advanced much since then.