The US coalition’s bombings has been far more cruel than even the Syrian regime and ISIS. Just compare the size of the destruction, the number of destroyed buildings between the liberation of Raqqa vs the battle of Aleppo. Despite Aleppo being a much bigger city, and the fight being far more fierce, Raqqa had far more destruction and was raised to the ground.
I agree with you that the SDF does not have many friends, and I support them in milking as much US aid as they can. But selling off the oil when most Syrians are struggling for a drop of oil is cruel, and we should not accept this.