Your risk is right on. The problem with throwing out dictators (laudable) is what they get replaced with (not necessarily an improvement). If Saudi Arabia wer

Your risk is right on. The problem with throwing out dictators (laudable) is what they get replaced with (not necessarily an improvement). If Saudi Arabia were to fall and be replaced by an ISIS style state, we'd be very limited in our ability to respond militarily without enraging significant parts of the Muslim world by conducting military operations on sacred ground. That then begs the question of "do we even care if there's an ISIS style state in Saudi Arabia?" The answer is probably yes, since an ISIS inspired state would clearly have ambitions beyond the Arabian peninsula.