We used to have a poster who loved to proclaim that McCain founded ISIS and you do now because of byzantine tangential links. Yet despite the mountain of evidence that suggests otherwise, you cling to a naive notion that alliances are only can only be binary, and if any taint to bad groups exist, then US should wash their hands immediately.
Must be nice to live in a bubble. Thus in your mind, the US should simply sit by as Assad & Putin slaughter hundreds of thousands, because getting involved would mean aligning with shady characters.
Of course your story line of US's involvement continues to change as facts emerge that disprove your pet theories. And not once did your theories include the reality that US is fighting Assad because he was the main gateway for foreign fighters to get into Iraq to fight US and Iraqi forces. Now he's paying the price for that deception.
And he should be getting more concerned because the Russians are finally taking the fight directly to ISIS. You may claim that they were doing it all along, but they haven't been. Yet all it took was for the US military to adopt a sensible battlefield strategy to destroy ISIS, instead of trying to flush them out of Syria (which Russians would not accept)
The sensible conclusion would be that US military is finally free to do what it needs without the constraints that were placed on it from 2008 through 2016. It would help your cause if you also put that context around your criticism of US foreign policy during that time frame.