We should do neither. Plainly "attacking Syria" is out of the question, but don't believe for one moment the Russia is "sitting back doing nothing". Tomorrow their foreign minister Lavrov visits Damascus where you may be assured that he will discuss with his friend and ally Assad how best to prop the beleaguered President up. Don't believe the nonsense about Libya: it's nothing to do with a genuine desire to avoid bloodshed (a bit late for that surely) but everything to do with desperately trying to preserve their many interests there.
Meanwhile the West and the Arab League are trying to do what they can in the face of the UN failure, but it's hard to see what they can do in the short term. Long term Assad, and Russia's interests in that country, are doomed (they are hated now by the ordinary, currently disenfranchised people, hardly susprisingly), and it is bizarre that they can't see that and try to cut their losses.