So is nobody going to mention that there are exactly the same number of MBTI types as daedric princes? (And nine divines, for the Enneagram crowd.) Anyway, some people here need to revisit their pocket guides to the Empire.
Bretons aren't trolls at all. Trolls are trolls. Breton culture is very refined. Also pretty far over on the artistic-to-technical scale...I agree that they are NFs, not NTs. With stereotyping, obviously.
TES magical ability correlates with iNtuition. What I remember of the in-game books talks about magic as imagining or choosing to believe in things, always ignoring what your senses are telling you. Sensing belongs to orcs, redguards, nords. There's a bias towards ES and IN, and against EN and IS, because TES is built on the fighter/mage/thief trio of archetypes. (With "evil" sometimes considered the fourth in the set.) Fighter means extrovert, everything else means introvert, with reclusive mages (and villains), and secretive, scheming thieves.
Falmer have a disorder, not a type. They have literally devolved. This is like typing reiklings. Or trolls.