''President Nixon says those against bombing Cambodia are communist sympathisers''
Corbyn has reasons against intervention in Syria, and although I disagree with them, it is a stretch to proclaim him and those opposing as 'terrorist sympathisers.
I think a lot of the left are in denial about the threat posted by Islamism to the West. But likewise I believe that the West is being naive in believing that it's current course of action, including bombing ISIS, will resolve this situation.
You can drop millions of tons of bombs, but if you don't have adequate troops, either local or foreign, to hold the ground, you will never be able to truly defeat an army.