If you follow Nietzsches Master-slave morality in favor of master morality then they are the good guys? ^^
all those philosopers were really limited, making huge deals out of logic, well they needed to sell their books. but yes they are good and other races are bad.
Just one problem with that statement.
As the Dovahkiin I am blessed by Akatosh and killing Thalmor is what I do on a routine basis.
That said, when I get this DLC I shall send your regards to the Thalmor before chopping at least one of their heads off with my Daedric war axe.
as Dovahkiin blessed by Auri-El you are not obliged to kill those beauty incarnates of wisdom but to help them reshape frozen wastes of Skyrim in the image of Alinor untill it eventually gonna be destroyed with the whole world, of course!