People automatically pegging the Aldmeri Dominion as being evil because of the Thalmor coming about a thousand years later are completely wrong. The current Dominion might look down on the other races, but they have a fairly benevolent goal.
However, people acting like elves are so much better than humans are also sort of wrong. The Falmer attempted to genocide the early Nords, and then were nearly genocided in retaliation. Elves then tried genociding each other with the Chimer and the Dwemer. And don't forget the Ayleids keeping the Colovians enslaved. Or how the Dunmer literally enslave anything they can get their hands on.
Point is, there's no 'good guy' or 'bad guy' as far as the sapient races go. They're all kind of [censored]s that have their moments of benevolence. That or they're like the Argonians, and want to be left alone to hug their trees.