The Americans don't want a Syria run by Assad or anyone else who won't be a puppet,if the Syrians wanted Assad gone he would have been gone years ago.I've posted about if in this thread and posted links to at least two books on wider collusion between those countries, Jihadis and others radical islamists. You ignore everyone that doesn't fit the propaganda line of the Assad regime. Assad pushed a me or the Jihadis line from the beginning and deliberately took actions to bring that situation about. His success is as he planned a major reason why he is still in power and various foreign interests haven't removed him. If America wanted him gone above all else why did support for the opposition repeatedly dry up whenever they were advancing? America does not want a Syria dominated by Jihadis.