Exactly. Notice the contradiction here:
"The Thalmor had always been a powerful faction within Summerset Isle, but had also always been a minority voice. "
Sounds like Imperial propaganda trying to justify the Empire's support for Altmeri dissidents. Wah, wah, they don't have a right to power because they're a minority group, wah, wah, *spends money supporting revolts in Valenwood.*.
The Thalmor would never have gotten power without a wave of mass, popular support, which they did get, and they got for a reason. The Altmer people finally overcoming the numidium and the damage the Empire did to their pride.
"The Thalmor had always been a powerful faction within Summerset Isle, but had also always been a minority voice. "
Sounds like Imperial propaganda trying to justify the Empire's support for Altmeri dissidents. Wah, wah, they don't have a right to power because they're a minority group, wah, wah, *spends money supporting revolts in Valenwood.*.
The Thalmor would never have gotten power without a wave of mass, popular support, which they did get, and they got for a reason. The Altmer people finally overcoming the numidium and the damage the Empire did to their pride.
This isn't a contradiction. The Telvanni were a powerful faction in Vvardenfell, and were also a minority voice.
To the OP: Your High Elf doesn't have to be from a High Elf faction or territory at all. There are plenty of High Elves who are members of other factions. Most factions are not race specific in ES lore. Only a few are. Really your High Elf could be from almost any faction in the current ES timeline. Your High elf could be... Imperial Legion' Imperial Mages' Guild student/teacher/associate; Imperial Citizen; Displaced Imperial nobleman/magistrate; Vigilant of Stendarr; Follower of any Divine/Daedra/etc; Pilgrim of any religion; Knight of one of the innumerable knightly orders from any nation in Tamriel; Citizen who grew up (insert anywhere here);Member of any of the great houses of Morrowind; Mercenary; Adventurer; The possibilities are limitless.