The first propaganda wave to get U.S. citizen support for regime change in Syria was based on the usual nonsense of "democracy" and "freedom". It took too long because domestic support for the Syrian government was much bigger than anticipated and the Syrian state would not fold. After a while real news reports about the Syrian opposition leaked out and it became obvious that the Syrian government was fighting a bunch of criminals and Jihadis. The U.S. military and U.S. citizens balked against fighting on those folks' side.
A new campaign was needed and the false-flag "chemical weapon" attack in a Damascus suburb was created to launch it. That campaign failed too. First in the British parliament and then in the U.S. congress. The plan was too obvious and the claim of evidence soon tuned out to be empty. Obama had driven himself into a corner. His credibility was at stake and he would probably have launched an open war on Syria even without congressional support.
Putin came to his rescue, Obama blinked and the campaign folded.
A third campaign is now being build, this time over the Syrian-Russian offer to get rid of Syria's chemical weapons. Obama and some Senators are trying to build a new regime change base by declaring any purported delay of hick-up Syria's voluntary disarmament a casus belli.
This campaign is likely to also fail. Russia and China will not agree to any UN resolution that opens even the smallest possibility to be abused for a case against Syria.
But all that does not save Syria. The U.S. led Saudi/Turkish/Israeli support for the insurgency with weapons, ammunition and training continues. It has to be stopped or Syria will be destroyed. The main logistic paths for the insurgency are the southern Turkish border and Jordan.
What has the resistance axis done to close those routes down? Yes, Hizbullah helped to shut down the Lebanese route. But where are the incentives for Jordan and Turkey to stop their support? Where is the pressure that makes them do so? What has been done to induce the insurgent's financiers to stop the money flow?
Russia can for now hold back the United States. But the task of closing the support areas for the Jihadis and to go after their supporters falls to the regional forces.
Come on folks. You already had two years time. Now get this done.