there are better ways of pursuing your political aims than taking to the streets (and this sort of thing would not be accepted within the US or in Britain or anywhere else in the west no matter how valid the pov expressed).
I think this is very relevant to what response one should expect from the UK state. The popular uprising of people demanding political change is a valid form of political activity, however any state would act to intervene when that protest threatens "national or State security" International laws relating to the sovereignty of the nation state disallow one state from overthrowing another. If one state must respect the sovereignty of another and the people must respect this (nationalism is a hegemonic political ideology that is imparted to the people, not necessarily followed by corporations and banks and certainly discounted by class interests) then it should follow that one state would actively support another.
According to "left wing" parties here in the UK, the Syrian uprising is a "marxist revolution" (they wish!) and that of course alone would be a direct assault not upon the politics of Assad but upon the State itself. So even discounting the fact that various terror groups have gone in, this uprising throws into question the whole premise of the sovereignty of the State.
But do the Syrian people themselves know what they want, which group can claim to have the backing of the vast majority of Syrians?
If a popular uprising of whatever flavour, with unknown demands take place in somewhere like the UK, should the state act to defend itself?
I would suggest that is would, and that it could very easily progress from being a few rubber bullets if the activists were themselves being armed. As it is the anti-terror laws are being used to infiltrate and collect evidence about political groups. The anti-terror laws would be used to put down a political uprising where that threatened the state making claims upon its sovereignty. Would America be allowing other nations to arm the rebels? would they be supplying intelligence to us? Would they intervene and if so to what end?
America has an agenda in the M.E & they have at various times admitted as much. John Kerry is talking and he gives the game away, he is a neo-con intent upon American Empire who states "America will act in its best interests" its clear that this trumps the idea that anyone should act in the best interests of the Syrian people. Some of these rich white suits are so thick that even with speech writers, researchers and the control of western media they still can't string a conspiracy together coherently enough not to give the game away.