The problem is a bit of a double standard, then, if we choose to leave out "yellow" for being offensive, but keep in "white". Additionally, I do agree that "white" and "Asian" are not mutually exclusive anymore than "black" and "American" (civil rights activist Arudou Debito has been pushing for years to get people to recognize that he is both 100% white, and 100% Asian, being a white male of European decent who emigrated from the US to Japan, and now is Japanese. As a resident of Nanjing, I've seen other people of Western decent struggle for acceptance as Chinese, even though their skin color isn't what is commonly thought of when one thinks of "Chinese". ). This distinction was also made by Chinese netizens in reference to Lou Jing, who is Chinese, born in Shanghai, but black http://www.chinasmack.com/2009/stories/shanghai-black-girl-lou-jing-racist-chinese-netizens.html
(comments, translated from the original Chinese, such as "Ugh. Yellow people and black people mixed together is very gross…only black skin, not yellow skin, chocolate skin…"
The problem is it's not 100% clear whether this is based on physical characteristics (which would make references to skin color somewhat more appropriate), or the attraction is cultural, or both.
I would propose "Eastern/Western Attraction". For one, Eastern and Western are both equivalent terms (where as "White" and "Asian" are not), is a bit more inclusive, as it implies not merely skin color, but also culture and background, and covers both genders. There are plenty of Chinese girls (of Chinese decent) who are more attracted to, or exclusively attracted to, Westerners, or Chinese men of European decent.
Alternatively, I would also suggest "East Asian/European Attraction" (or some sort of similar title), as I've noticed the people of African decent, whether Chinese or not, have a very different experience when it comes to dating and relationships (as well as many, many other parts of life... it's complicated, as the above link shows). It's also important to specify "East Asian", since the trope doesn't seem to apply to people of Indian, Israeli, Russian, or other Asian decent.
Unfortuntaly, you can't really be catchy as well as accurate, but the trope title, as is, just is widely inaccurate.
edited 5th Oct '12 11:10:47 PM by Maitiu