How about the way to roll back Russia is for the USA to side with Assad for him to wipe out the jihadis (and all the Syrian rebels are jihadis) and then call it a win?
You’re always for Putin, but I’m against tyranny to include Assad, ISIS, and Putin. You can believe there is good tyranny if you like. The best that can happen right now is for both Assad and ISIS to lose. The fact is, though, that Putin will put most of his firepower against the Islamists lasted. They provide him a rationale for his geo-political land grab.
This axis is in the process of inverting the balance of power in the region and will clearly have the capacity to upset the world's economy by upsetting the supply of oil. It will ignite and accelerate a nuclear arms race in the region which is the most dangerous region in the world. We have already received news reports of attempted smuggling of atomic elements.
This new coalition with its nuclear weapons, its capacity with missiles to deliver them, it's invulnerable position because of its relationship with Russia, it's potential to interdict the supply of oil, so changes the balance of power that it makes it possible that it might wreck NATO, it might peel off our European allies, it might cause Germany to align with Russia and China and that would be a calamity of the worst sort.
So the question for those of us who think beyond Donald Trump, is what is the national interest of the United States, is Isis worse than a nuclear armed and aggressive Iranian/Russian axis?
Before we rush to conclusions we ought to at least consider the implications on both sides of the Russian intervention.