Meanwhile, the Imperials are kow-towing to the Elven Nazis who curbstomped them and want to get rid of the worship of the Nordic patron god for religious, world ending, and racist reasons. It’s complicated as to how he became a god, but he cheated.
The last thing to note is that the traditions that the nords are fighting the Imperials to protect are Imperial traditions that the Nords have come to accept over time, and their patron god is actually neither a Nord or an Imperial, but is in fact a Breton from the most far flung country in the world. Only issue is, Ulfric really hates the Elves, so he goes completely rogue and possibly mental as well, and gathers up half the country in rebellion against the Imperials, who are weak and falling apart. Following a huge war with Elven Nazi Germany, the Empire is weak, so the Thalmor release a brainwashed double agent, Ulfric Stormcloak, to go and stir up some chaos. The Imperials have been in charge of Skyrim for a long time, and Skyrim has changed over time with the Imperial rule. For those who don’t know, in ES5: Skyrim, the Game world is divided into two factions, the Stormcloaks, and the Imperials.