» Sun Jun 03, 2012 10:38 pm
If everyone is united under the Empire, their conflicts will be political and court matters, and not something they have soldiers go murder people over. The Stormcloaks would rather have themselves and loads of Imperials die, than have someone else have a say in how they do things. If the Stormcloaks have their way, Tamriel is a set of fragmented kingdoms and armies, with no real options to settle disputes other than swording everyone in their ways.
The Empire does insist you join it by whatever means necessary, but once you do, you are free to come participate in just about everything it does. If the Medes try to carry on as the Septims did, they will even make compromises with the people they rule in order to keep them peacefully in the Empire. They don't want to replace local rulers, just give them someone to all report to. And, again assuming the Medes act like the Septims, the rules they'll try hardest to push on their subjects will be beneficial things like banning slavery. The Stormcloaks, should they win out in future TES lore, are going to be a country full of people whose national pride is based on that time they fought some foreigners away and refused to let other races have power within their borders. That's just bad for everyone.
The Thalmor are separate, and the Empire is doing what it can within the terms of a surrender that they certainly didn't want. If they had the strength (which they are surely trying to rebuild), they would fight the Thalmor again. Talos represents the Empire's pride as much as he does the pride of the nords. The Thalmor feel about elves the way the Stormcloaks feel about nords, so even though the Empire and Thalmor are currently acting like one side, the Stormcloaks and Thalmor are similar factions, with the Empire opposing both of them as far as ideals.
Even with the Septims dead, the Empire have always been the good guys in TES. Main quests have usually (always?) put you on their side. I don't feel like that's really changed.