My reasons for doing so are:
Hadvar states: "Your kind always seems to get in trouble." As a Khajiit, this statement sounds as though it should be offensive.
With the Thalmor at Helgen, I'm not sure if my character should feel guilty for the capture of the Stormcloaks because the Thalmor were searching for him, the Empire was searching for Ulfric. Our paths crossed, could be my fault 'cause the Thalmor could've informed Tullius as to Ulfric's whereabouts.
An alternate possibility is Tullius telling the Thalmor that I'm "their" prisoner and it is none of the Thalmor's business. This scenario would make the Stormcloaks at fault for my inability to get away into Cyrodiil. This was my original theory.
The goals of this topic are:
Finding out which side J'derras Dar-Jokrin shall take. Note that J'derras has an open mind, but he hates the Thalmor with a passion. He doesn't like murderers (which Ulfric is accused of being), but he likes freedom and choice. Show me your arguments.