The relevance.I don’t understand how that’s relevent to anything I said. Obama did.
I said the US can stay in Syria or leave Syria as they wish (fact), but I personally am glad (opinion) that Trump has had it quickly explained to him that telling Turkey he’d pull out without negotiating any sort of security for the Kurds was basically signing their death warrants.
As well as those of the anti-Assad fighters all of our countries have been training and arming and fighting alongside.
Why is it important who sent them there?
You said, "He didn't realize the slaughter he'd ok'd."
You are blaming Trump for the consequences of Obama's policies in Syria.