No. If the player isn't Altmer, it still accepted in clan. Moreover, the Berne Clan has only Imperial as member (with Nord and Khajiit cattles), and the Quarra Clan has almost all members Nord, but the leader (Volrina Quarra) is Imperial, with Argonian, Bosmer and Orc cattles, and the player still is accepted in all clans.
That's what I pretty much said..It's only a coincidence that those clans only seem to have 1 race of NPCs.
Strange that Hircine is is represented with the face of a deer, not from a wolf.
Wear the hide and parts of the prey you slew.
In real life we don't know how vampires would have been created, and even though their existence is always portrayed as horrible it's mostly from a human point of a view, so the human recounting the story or rumor can only imagine what it's like for a human to be in that state and not what it would actually be like for the vampire, so they might make it seem far more terrible than it actually is.
However, both are wrapped in myths. But unlike this world, myths in TES tend to be true, or hint heavily at the truth. Also, being a vampire does svck! Why? Well, for one you CAN be one in the TES games, and there are accounts of people (though rare) of being cured from the disease/curse. So that line of "well since we're not vampires we'll never really know" is moot. As a vampire, you are driven feed by consuming the blood of others. This was exemplified in DF in that they had to kill something every 24hrs (you kill and drink their blood, and it doesn't matter who/what you kill). In MW, this was done by having it so the PC couldn't regenerate his/her life and had to use an absorb health vampire spell as if he/she is consuming the blood of an enemy (again, anything will work). In OB, you had to feed only on mer/men/beastfolk in order to stay pretty, and accounts from in-game notes and actions show that if they Cyrodiil vampires don't feed, they go crazy and bloodthirsty (har, har).
Not to mention whenever you close your eyes, you have horrific nightmares each and every time. Furthermore, never being able to see the sun again also really svcks, as you can no longer bask in the warmth of the sun light, and is forced to live in dark places and be active during the night.
But my point is lost, my point is that we don't know how vampires would have been created therefore we can't say if they really were damned or not.
They're damned in a sense that they can no longer die, and have to consume only the blood of the living for the remainder of their lives until they become cured or die a violent end. And depending on which myth you choose, it's a daedric curse through and through, whether it was from [censored] to create an abomination of Arkay, defilement of a corpse, or the corruption of a mortal to be a walking nightmare
They're existence is vague and mysterious and everyone can just make up their own minds however in the elder scrolls they have given us a clear picture of how vampires came to exist meaning the mystery is taken away and we can't make up our own minds because there is only one creation story.