Alright, but this isn't ethnicity. This is a difference between say and elf and Qunari; something I assume is very biologically different. And that last line, not really. Is somebody who has a gender preference then 'sexist?' I'm sorry, perhaps I'm just not following your logic. (I hope I don't come off as rude, I am really just curious and want to see more of your opinion. ^^)
I think it's incredibly hypocritical for people who absolutely refuse to initiate relationships with people based solely on gender in real life to say that absolutely refusing to initiate a relationship with anyone because of their species/race is "unfortunate".
I really don't see any difference between the two.
Hm, maybe I'm not explaining myself well. Attraction is a funny thing because there is are both biological and sociological aspects to it. You can not be attracted to someone because you don't find them physically attractive. You can not be attracted to someone because you don't find their personality to be likeable. Same sex attraction is usually not something that "develops" over time. The vast majority of people who have same attraction have felt this way since birth and because of sociological reasons did not express it. It's why gay people (myself included) get so worked up over the "you'll turn gay" comments that people about prison and whatnot. Same sex attraction is innately ingrained into people that we have words for it. In pretty much every culture, there are words for it.
Now, compare it with finding a different "race" attractive. First of all, "race" isn't even a biological concept. It's a social one, so that immediately makes it different. Again, I could understand if someone said, "I don't find light skin attractive". That's a preference. But to say, "I don't find white people attractive" that sounds odd to me. There are dark complected white people. There are pale white people. There are dark haired, light haired, red haired, blue eyed, green eyed, etc. It just seems odd to dismiss an entire race (and ALL of the variety within it). What exactly don't you find attractive about white people? That would be my question to them. And, converse to same sex attraction, there is no word for being "white-sexual" or "black-sexual". That should be a big clue that it's not the same thing. There's not even a word for it in English.
Hope that clarifies my thoughts a bit more.