That withdraw never really happened, Defence One or one of those weird military blogs has a good interview with Trump’s former Syrian envoy about what happened. The Kurds are the singular instance of US support for violence that I’m pretty much alright with. I have a personal connection to it but I don’t think that affects my judgment.

EDIT:

Four years after signing the now-infamous “Never Trump” letter condemning then-presidential candidate Donald Trump as a danger to America, retiring diplomat Jim Jeffrey is recommending that the incoming Biden administration stick with Trump’s foreign policy in the Middle East.

But even as he praises the president’s support of what he describes as a successful “realpolitik” approach to the region, he acknowledges that his team routinely misled senior leaders about troop levels in Syria.

“We were always playing shell games to not make clear to our leadership how many troops we had there,” Jeffrey said in an interview. The actual number of troops in northeast Syria is “a lot more than” the roughly two hundred troops Trump initially agreed to leave there in 2019.

www defenseone com/threats/2020/11/outgoing-syria-envoy-admits-hiding-us-troop-numbers-praises-trumps-mideast-record/170012/