Really, not trying to start fights, I just really enjoy this Imperial/Stormcloak debate. With that said I’m curious to hear response on the following points:
1. How can The Empire be too weak to continue to fight the Aldmeri Dominion but would rather fight Skyrim rather than let it secede like other nations already have?
2. Do you really believe The Empire cares about the people of Skyrim when they would allow the Thalmor to enter Skyrim and aggressively and violently persecute worshipers of Talos? Seriously, wouldn’t a better option be to let Skyrim secede and then tell the Aldmeri Dominion, “hey, we’re following the treaty.” Yes, then Skyrim is left to fend for itself but can the Aldmeri Dominion really invade Skyrim at this time and who says The Empire has to help or give passage through their land?
3. Don’t you think that an alliance of Cyrodiil, Hammerfell, and Skyrim would pose a serious threat and would make more sense than fighting Skyrim?
1. Many, many reasons. As already mentioned, the Aldmeri Dominion is a lot larger than one province. Further, the more provinces secede from the Empire, the less Empire there actually is. Skyrim is a founding province, Tiber Septim was, at least in all popular accounts, a Nord. A majority of the Empire's troops come from Skyrim, especially since Hammerfell is gone. The Empire is in desperate straights, and needs Skyrim's resources to even hope at rebuilding for the Great War Part II. Further, the Stormcloak rebellion is not the same as Skyrim rebelling: the Nords are anything if united about the war. At game start, a minority of Jarldoms support succession, which means that the Stormcloaks are fighting their own people as much if not more than the Empire itself (even the Imperial troops seem to be majority Nords, as one might expect for the province's soldiers). Perhaps the most basic and important reason is that the two provinces that still remain with the Empire and which haven't been torn to bits by disasters (see: Morrowind, and Morrowind was never all that thrilled to be a province) are Skyrim and High Rock. If you'll look at a map (the one here will do http://elderscrolls.wikia.com/wiki/Tamriel) Skyrim is the land route between High Rock and Cyrodiil, now that Hammerfell is gone. If Skyrim goes, there effectively IS no Empire, as both provinces will be isolated and fully open to attack from the Aldmeri Dominion.
2. See above. Letting Skyrim secede and then telling the Thalmor 'hey look, following the treaty!' will have the Thalmor going 'good boys, and now we're going to invade and decimate you, so you can use that treaty to wipe your tush'. As other people have mentioned, Ulfric's making the issue public has backed the Empire into a corner and given the Thalmor free reign to tromp around the countryside arresting people. Either the Empire turns a blind eye and gives lip service to persecuting Talos worship (despite many of the Imperial supporters still worshipping Talos in secret), or they kick the Thalmor out...and then the war is back on in earnest, which is not something the Empire is remotely ready for. Prior to the Markarth incident, the Thalmor weren't in Skyrim, or at the very least, their Justiciars weren't running an inquisition on Skyrim soil. Going by the map, I doubt the Aldmeri Dominion would invade Skyrim until the Empire was properly decimated, which Skyrim seceding does a good job at. At which point it would be Skyrim and possibly Hammerfell versus, well, everyone else.
3. Yes, but an alliance seems terribly unlikely. Wars bring bad blood. Hell, even in the face of THE LITERAL END OF THE WORLD by a blood crazed dragon-god, getting the Imperials and the Stormcloaks to agree to stop shooting at each other for a tiny period of time was like pulling teeth from the mouth of a fully awake and VERY cranky giant. And that was just over the matter of 'hey, how about you NOT invade Whiterun while we take care of this thing, okay?' Expecting the shattered remains of the Empire to team up with a province that just committed bloody rebellion, killed their general, displaced their supporters, and kicked them all out, and a province that they themselves threw to the wolves in order to try and save Cyrodiil, is like expecting the Middle East to suddenly realize that all of their differences should be set aside in favor of teaming up with the US to combat global warming and other environmental disasters. Nice thought, NEVER GOING TO HAPPEN because people are people and all sides have some pretty legitimate grievances with the others.