I mean, even if the opposition did take over, many of them have committed war crimes just as bad as Assad, and are just as bad as Assad, and even if Assad's regime was taken over, the opposition would likely quarrel and fight amongst themselves just as the mujahideen did in Afghanistan, and the worst possible group would likely take over in the midst of the chaos...a group worse than the original...this is because the rebel groups have vastly different objectives, and goals for Syria.....