Great post. I've been a fan of racial fetishism for many years, and this touches on many topics I'm interested in.
I'll echo what others have been saying and put forth the idea that you shouldn't feel guilty- I myself have a preference for Japanese, Middle-Eastern, or African-American women. Basically any non-European culture. It isn't at the level of exclusivity that you maintain (I am still attracted to all sorts of American and European women!) but it's there nonetheless.
- FS