"They have never been truly allied with other nations. Mistrust has been engendered by the ritual cannibalism that they practice in accord with their Green Pact."
Can someone verify this via ingame books or NPCs? I will never look at a woodelf the same.
I found these particular sections most intriguing. I'm surprised the Altmeri and Bosmeri don't hate the Dunmer for their ancestral rituals.
Foreign Views of Dunmeri Ancestor Worship and Spirit Magic
The Altmeri and Bosmeri cultures also venerate their ancestors, but only by respecting the orderly and blissful passage of these spirits from this world to the next. That is, Wood Elves and High Elves believe it is cruel and unnatural to encourage the spirits of the dead to linger in our world. Even more grotesque and repugnant is the display of the bodily remains of ancestors in ghost fences and ash pits. The presentation of fingerbones in a family shrine, for example, is sacrilegious to the Bosmer (who eat their dead) and barbaric to the Altmer (who inter their dead).
The human cultures of Tamriel are ignorant and fearful of Dark Elves and their culture, considering them to be inhuman and evil, like Orcs and Argonians, but more sophisticated. The human populations of Tamriel associate Dunmeri ancestor worship and spirit magic with necromancy; in fact, this association of the Dark Elves with necromancy is at least partly responsible for the dark reputation of Dunmer throughout Tamriel. This is generally an ignorant misconception, for necromancy outside the acceptable clan rituals is a most abhorrent abomination in the eyes of the Dunmer.
The Dark Elves would never think of practicing sorcerous necromancy upon any Dark Elf or upon the remains of any Elf. However, Dark Elves consider the human and orcish races to be little more than animals. There is no injunction against necromancy upon such remains, or on the remains of any animal, bird, or insect.
Imperial Policy officially recognizes the practices of Dunmeri ancestor veneration and spirit magic as a religion, and protects their freedom to pursue such practices so long as they do not threaten the security of the Empire. Privately, most Imperial officials and traders believe Dark Elf ancestor worship and displays of remains are barbaric or even necromantic.
Telvanni "Necromancy"
The Telvanni are adept masters of necromancy. They do not, however, practice necromancy upon the remains of Dark Elves. Sane Telvanni regard such practices with loathing and righteous anger. They do practice necromancy upon the remains of animals and upon the remains of Humans, Orcs, and Argonians -- who are technically no more than animals in Morrowind.