Board Thread:Lore Discussion/@comment-81.103.152.214-20140212201133/@comment-25047024-20140212201734

The Dunmer probably don't care about the Thalmor. They would only do something if the Thalmor would launch a direct attack against Morrowind.

The Thalmor themselves probably don't like the Dunmer. They generally don't like the "lesser" Mer, such as Bosmer and Dunmer. The Dunmer also worship Daedra, and worshiping daedra is apparently something outlawed in the Summerset Isles.