I don't know how you came to a lot of those conclusions, and the only way I can come up with is that you used stereotypes.
If you can tell us exactly how you came to these conclusions then I'll take it back, but at the moment it looks like you just took, for example, the snobby french stereotype, saw that the Altmer were snobby, and figured they were the same.
Altmer=french- rich cultural history, sophisticated.
Dunmer=Tribal Aspect, different ideals between tribes, taken over by outside force,
Redguards= Sailors. that was main reason for that one
Imperials: Well this one is obvious. if you dont get it then im not going to make any attempt to explain it to you.
Bretons: Peaceful, and known for it
Khajiit: like i said this one i just took a guess. most hispanic people i know are athletic, like sugary things(dias de muerto) .
Nords: well yah this one is pretty damn obvious too.
Argonians: If you dont know anything about the Zulu then you wont understand it.
Tsaesci: Mostly the Weaponry and design of architecture.
learn a little about history and you might come to understand what forms stereotypes.