Terrible. I don't think we should be interested in propping a fake stability in the Middle East which only leads to further issues downstream.
Yes we should do our best to help the genocide of 30-40% of the Syrian population on the way.
More seriously USA are not propping up fake stability in Syria, USA and its allies (including the European one, but especially the Middle Eastern ones) are doing their best in destabilise Syria. If we didn't supported the rebels to greater and lesser degree, the regime would likely have crushed them by now, and a lot fewer people would be dead and ISIS would still be a small terrorist group in Iraq.