Its repeated ad nauseum but its mostly related to traditional values. Asian women are far more likely to hold those values than white women. Whether first or second generation, those values typically remain. Men go 'fuck it, im not dealing with another Brunswick art ho and her nonsense' and date someone who actually makes them feel good about themselves.
Never doubt the power of being an entitled cunt turning men off, permanently.
My fun theory is that as a result, there will be a large and active group of 30+ single white women, possibly with kids, fucking up the country even harder in maybe 10 years. Demographics change and thats going to be one entitled, angry and bitter voting bloc going forward.