Well lets be honest here, lets take Libya as the example of when you should just let the ***** run the country and ignore it, instead there are now hundreds of *****s and no rule of law (regardless of how harsh it might have been).
So to advocate for Syria's government to fall, is to advocate the same thing that happened in Libya.
All of these "nation states" are barely held together tribes that all hate each other, and especially if they aren't the right kind of religious belief, so no... these rebels do not want a progressive nation at all, they want to benefit their tribe and that's it. They should all be stopped to preserve some level of sanity in the region.
How do you think the 'free' western world got to where it is? Did it just allow oppressive regimes to continue to dictate them? As a Scotsman you amaze me how you are so accepting of that. Mind you, when it's not in our own back yard, who cares right? I'm alright Jack!