You're getting way too worked up about this. You made your point well enough, is it really necessary to get upset and harbor the same sentiment towards Nords that you deride them for holding against Dunmer?
Anyways, I would've preferred to see the two groups get along better. I really liked the idea of the Nords offering warrior's hospitality to their old-foes-turned-wanderers, the Dunmer.
Racial tension is all well and good, but it gets boring after a while, and a limited syncretism of Velothi and Nordic cultures in eastern Skyrim would've been way more interesting to me.
Yes it is, in the forums, at least.
I tend to get more worked up about things on here than I do in game, yes, I had to restrain myself from slitting the throat of that one Nord who told me that he'd punch me back to Morrowind; I kicked his ass, and he claimed I didn't fight fair. Being ex Morag Tong, repenting and trying to take control of one's own blood lust, I found it difficult not to remove his head from his body. But other than that, the Nords really don't bug me. Some of them I like, actually. Specifically the Ravencores and that Bruunulf Free-Winter fellow (that's not how his name is spelled.)
But I do want to say that the Orc argument is invalid, mainly because Orcs want no part of Nordic society. They either stay with the clan, become sellswords, or join the Imperial Legion. They have no interest in setting up permanent residence in any of Skyrim's cities, nor do they have much interest in the political landscape, so they have no problem with not being equally represented.
As for Beth's choice to make everybody hate one another rather than developing interesting hybrid cultures, that just seems like Skyrim's direction as a game. Every guild is in decline, nothing is in its glory days, everything is going to complete [censored]. Honestly, I feel like the game tries too hard to get these points across, and thus sacrifices lots of interesting possibilities in the lore. Not to say that Nord's should welcome the Mer with open arms, but the extent that they reject them seems a bit drastic. Specially sense their enemies are yellow and brownish, not gray.