I attribute my soft spot for Asian guys to my grandmother's Korean-ness, but it can also be my rather heavy exposition to Japanese culture while growing up because of my relatives. Otherwise I'm not sure how I "caught" it. But then again, I like guys of all races, so who knows. For example I like black guys and I've had little to no exposition to them - Mexico's population ranges from native Mexican to European, everything else is insanely under-represented. Wikipedia says there's an estimated of 450,000 "Afro-Mexicans" in Mexico, and they're concentrated in a couple of states.