'You also haven't countered my point that the majority of the rebels are Syrian and the majority of them are in the FSA.'
No I haven't countered it because you are probably right about that, but we have had reports of some of them joining and fighting with Al Qaeda.
"Shall I consider all UK forces in Afghanistan to be murderers following the action of the recently convicted marine? No."
No, and as well as not being murderers, none of them have eaten anybody's heart or lung either.
' I'm not finding any solid evidence of widespread massacres of Christians either.'
There have already been massacres of Christians and murdering of priests. If Al Qaeda and the fundamentalist Jihadis win the war, then I think there could be more of these atrocities against innocent Christians by religious fanatics.
"Of course, there have been many, many massacres by the Syrian Army and the regime Shabiha, but you haven't seen fit to mention that have you? Particularly all the air strikes they've carried out on civilian areas in aircraft supplied those "peace-brokers", the Russians."
I haven't heard of any Syrian army units or soldiers descending to the barbarism of eating people's hearts or lungs. Unfortunately, air strikes are part of wars and civil wars, just as we bombed Serb civilians when we went to war.
"I cannot tell you how insulting such conspiracy theories are to the Syrian people. This is their revolution, they have 40 years worth of reasons to want the Assad regime gone."
Are Assad's supporters and the Christians etc not also Syrian people and do you really think Assad is so stupid not to realise what this war is really all about and why the Saudis are funding it and what they seek to get from it?
This is a revolution of some of the Syrian people backed by Saudi Arabia and aided by foreign mercenaries, Jihadis and Al Qaeda and they have been asking for teh West to intervene and strike and arm them. Assad and his supporters are not foreigners in their land and they have nowhere else to go or to go back to - unlike the mercenaries and Jihadis and Al Qaeda elements - and they are fighting for their survival against Saudi funded forces among others.