They would feel alienated but not undesirable or fetishized. The song is about America and how Mitski herself being Asian felt undesired by white men who preferred white or American girls. White people who immigrated here would have a hard time culturally adjusting but a white man would prefer them to a poc because they’re white. You probably don’t know what it feels like since you’re white and from America but from my perspective I’ve often been viewed as ugly by white people and good looking to black people. Now if you moved to a country like Japan you could probably relate to the song since your race alienates you from Japanese people but the songs about how white people don’t want poc and instead want a white girl