Asian fetish is commonly understood as white guys being abnormally attracted to Asian girls because of how much more beautiful they are when compared to other races. However, this is a myth.

White guys go after Asian girls not because they are intrinsically prettier than other races (they MOST CERTAINLY ARE NOT), but because they know they can score easy pussy, and have a girl who will worship his whiteness and be his "ride or die," even if he's an awful person. As men, we are always looking for the path of least resistance, Asian women happily offer that path.

So "yellow fever" and "Asian fetish" loosely translates into "I'm horny, I want a girl who will be easy so that I can get off as quick as possible with as less work as possible, and who is also not an escort, because I don't want to pay. Oh lookie here, one of them funny looking chinks. After all, her kind are absolute crazy white guys!"