Board Thread:Lore Discussion/@comment-108.243.170.212-20140223152728/@comment-16047389-20140228181322

Doesn't matter what the other elves think. They are the Orsimer. They are constantly listed as Mer.

Just as the twisted Falmer are still Mer, the Orsimer are still Mer as well. Another way to prove it is by their blood. Septimus uses the combined blood of Falmer, Dunmer, Altmer, Bosmer, and Orsimer to trick the Dwarven mechanism into opening.