Morrowind as well, all the factions suck (except the anti slavers), and hate each other, but complex material systems of oppression and co dependence trap them in a decaying structure and have caused even the more noble institutions to be corrupted. And now that system is no longer capable of defending itself.

You may or may not be the Nerevarine, and even if you are it's unclear what that actually means and if it's prophecy or you taking it "by violence". But you can use the fact other people think you are to break the cycle.

Of course once you have there's no guarantee of anything better on the other side, you're just some guy, you know.