It's hard to find any good guys in the Syrian Civil War (Rojava might be one, but it's hard to tell for sure from here), but Assad is definitely one of the bad guys, and having ISIS for an enemy does not make him any better. He is clearly no less a murderous monster than Saddam Hussein (a fellow Ba'athist, which I am given to understand is not quite the same thing as a Baptist, though confusion is understandable). His regime has got to go. But Russia backs him to the hilt, and now the Trump Admin is cozy with Russia. Against all that, who can do what to bring him down?