Ok that doesnt make any sense. if this is some reference to that "morrowind lore" conversation pick, where you find out that dunmer hate outlanders, especially foreign born dunmer.. i never had an issue. errbody loved me in the end. Hell I had Berrel Sala(I know i just destroyed the actual spelling of his name) the chief ranking ordinator on vvardenfell tucked into my belt. Why? I joined the temple. Cant go wrong there. Even though i was a telvanni. But a Telvanni ArchcanonMagister, who also happened to be a Primate of the Imperial Cult, and an N'wah Outlander S'wit of a heretical Nereverine. Dispositon Sala: 100. Before Vivec's Pardon and post his declaration of me as a heretic(paradox anyone). BOO YA you and your "cant play as dunmer"..
I AM THE DUNMER....(Im not serious)
You're still an outlander, you weren't born and raised in Morrowind. You didn't have the right accent, the right clothing, right way of walking or talking... The Dunmer hate outlanders because they destroy their culture, what's worse some foreigner that destroys and goes against their culture, or a Dark Elf doing the same? The first is an enemy, the second is a traitor.
Of course you can still become a member of the Temple, lead a great House and what not, and that will earn you respect and might make you accepted into their culture (at least for a great many), yet you still start out a traitor.
They weren't more friendly to a Dark Elf because the game is old... and they try to say it's because you have an accent (I assume you're voice isnt raspy like theirs).
I didnt like how Skyrim seemed to be made for a Nord and Morrowind was made for a Dunmer. Oblivion got it right. In Oblivion you actually start out as a nobody. You're not destined to do anything and you're in a cosmopolitan province where all the races have equal footing. An Argonian or Khajiit CoC actually seems plausible.
While I agree with Skyrim, as in Nords make the most sense... How does Morrowind favor Dunmer? I don't see it, there is no difference there. The only thing that could be said for favoring Dunmer is that Dunmer are Azura's people (or sort of) and that Nerevar was a Dunmer... On the other hand the same argument can be made for the Nerevarine then being an Altmer, as they are more like Chimer were and Azura might just want to show of what used to be instead of what is now... Regardless, in Morrowind you are a foreigner.