There has become a tendency today to conflate race and class. People from poverty seek fortunes in more affluent societies whatever their skin color. There are also Eastern European and Russian women who have over the years saught to find a man in the West to marry.
That somebody seeks a man in the West, doesn't need to imply that there is some kind of fetish about white-men in general, just because the women happens to be of a different ethnicity.
Modern discourse, has it seems to me become obsessed with seeing things through a racial lens.
I am married to an Asian-Canadian, but never thought of myself as being in an "interraccial relationship." To me I am with somebody of a different culture and nationality. Is the fact that we look different supposed to be the main focus of our relationship?
I would rather say I am in a cross-cultural relationship. I am not sure if we do the world our ourselves any favors by interpreting everything we see in terms of race. A lot is simply about class and culture. Race is often just incidental.
It is like when people talk about fetish about whiteness, and suggest it has to do with colonialism. Sure that may be a factor, but people are so focused on seeing things in this racial way that they entirely forget other types of explanations.
Here in Europe, being white was also seen as better historically but not for racial reasons. It was simply because somebody working in the fields would be more tan. Your whiteness was thus just a reflection fo class. It wasn't because people thought you where racially different. It was because they assume you came from a more affluent family.
Asia must have much the same experience. Those who worked the fields must have been more tan than the upper class. Thus like Europe I assume that being paler was prized historically in Asia for this reason. Now this simple social phenomenon is being rewritten to be entirely about colonialism and fetishing about white people.
But perhaps that is just a convenient narrative people want to create. It is easier to blame an outsider than ones own culture.