Being sympathetic doesn't mean he fully supports the empire, it just means that of the two he sees the empire as having a stronger point. Ultimately he refuses to get involved until Ulfric forces his hand and he clearly gets annoyed with the empire throughout the course of things. Balgruuf may be overly cautious to some but I respect him far more than Ulfric since he can actually think more than 5 minutes ahead and his pride doesn't dominate his actions.
He may not fully support the empire at the time, but once he wrote that letter to Tullis to request his aid (after doing the wrong thing by returning the axe instead of physically going to windhelm himself to deal with Ulfric) he might as well become a full supporter of the empire, since he supports the aid of the empire and allowed the Imperials soldiers to come in whiterun.
As for the Windhelm serial killer the blame is on both the guards and Ulfric, it is his duty to protect his people literally and metaphorically. Balgruuf keeps his city safe and secure and his men are far more diligent in their jobs, they even kicked out the Alik'r because of the crap they were pulling when looking for the redguard woman. In short, Ulfric can barely keep his own hold in order, how can he run the country.
What about the incident with the Gray-manes? Where was his help when the Battleborns was involved in the kidnapping of Thorald Gray-Mane? You would occasionally see Olfrid taunting the distraught Fralia Gray-Mane at her stand regarding to her son. Olfrid eventually confesses to her in a proud manner that he is held prisoner. Approx 4 feet away was a guard idling and did nothing. You can't help but to wonder if Battleborns bought the Jarl and the guards... you know the same way that Maven essentially did in the city of Riften.
Ulfric is not perfect as he is human but his reasons for the civil war is valid. He wants skyrim to become independent and free from the Empire. He also wants to rid of all Thalmor that the empire failed to eradicate in skyrim therefor allowing his fellow nords to openly worship Talos again. With Ulfric in control of skyrim People like Balgruuf and Elisif would no longer keep their worship of Talos as a secret fearing that the Thalmor will kill them. Yes even with their high status I can still see the Thalmor sending out their assassin's to kill the 2 and the empire would turn their backs like they've done to the people in skyrim for so long.
Actually yes it is her job, being a housecarl means acting like the personal bodyguard to the Jarl. (like how Lydia is your 'sword and your shield' as she puts it because your are a thane). The guards job is to enforce the laws and they DID stop you, they only let you into the city because you have information about the dragon attack. Irileth stopped you when you were approaching the Jarl himself, its like a cop clearing you into a event with a diplomat but the secret service (Irileth in this example) preventing you from just walking right up to him. Not only was it completely acceptable but it is to be expected, who are you to just walk up to the Jarl armed, plus remember as Irileth has pointed out, there have been attempts made on Balgruuf's life so again, you are just overly sensitive to being put in your place. (sorry for the slightly rude tone of that, mostly just meant to emphasize her role in things)
It might be her job to protect the jarl but isn't it obvious that right after you enter Dragonreach that the guards didn't seem to hesitate nor find you as a threat? Irileth overreacted. I can understand that theirs been an attempts on Balgruuf's life but wouldn't the guards be on a high alert? Shouldn't they been the ones to approach me?
And about the overly sensitive remark that you made there... In a role-playing POV less then 24 hours I've been snatch up by the imperials; was taken to Helgan to be wrongfully executed to which my name wasn't even on their list, (FYI: Balgruuf had no concern over since he clearly indicated from the dialog that he doesn't care who the imperials want to execute) http://bulk.destructoid.com/ul/user/5/59193-221671-NobiDragonJPG-620x.jpg. At this point I only trust my fellow prisoners, Ulfric and Ralof. Long story short I was told to speak to the Jarl of whiterun and that I did. With my characters nerves already ruffled up from almost getting killed by the imperials Irileth comes to me with her weapons drawn... almost made me draw mine out to defend myself. I call it irresponsible. Had she been my housecarl and did this to my guest I would've sent her ass to Sithis.
If this debate is to continue it should seriously be done in another thread though, the OP has had his question answered and this thread is off topic. So if anyone wants to keep this going (as pointless as it will ultimately be) then create a separate thread for it and let this one die.
You're right and therefor this response will be on a brand new thread.

