People who are only attracted, or not attracted, to one specific race make me feel uncomfortable. I can kind of understand it when they are only attracted to their own race, but only being attracted to a different race has always seemed very odd to me.
I think that being attracted to one race over another is not a natural attraction that someone is born with. I think it's something that one develops over time based on the prejudices and stereotypes of society. People who prefer one race to another, in my mind, are rarely attracted to the individual. They instead look at their partner as a list of stereotypes and judge them based on how stereotypical they are.
I think another factor is status. Some races, in the minds of racists, are lower/higher than others. So those who feel they are in one of the "lower" races, feel a need to "date-up" by seeing someone of a different race. The reverse of this is those who are part of the "higher" race, who are not good enough to get with someone of their own race, so they intentionally "date-down." Believing that because they are part of a "higher" race, they will easily be able to obtain a partner from the "lower" races. Both of these groups will try to say that they just have a preference, but in reality they are just dating up/down.
All these actions sicken me and are why I am very mistrusting of those in interracial relationships.