Cause it's not a fetish for most Japanese. The BMAF fits the cuckold and "taboo" crowd and AMWF favors the self insert western female crowd.
White guys are seen as boring cause they are the standard image Japanese have of "foreigners" but can't really be self inserted into.
I'm black so I probably have advantage of just being able to see exotic Japanese with people of my own color which may be some sort of unconscious self insert factor as well.
I'm glad they are serving my interests
Absolutely agree, it's about the "taboo". WMAF is the opposite and in asian culture it's kind of "idealized" interracial relationship
thanks to John Lenon and Yoko Ono
and any other couples who continuesly followed the path.
Porn is supposed to be the opposite, as something controversial to break the boundaries, it's has to be something new, a totally different concept to shock the masses.
remember every JAV interracial releases has "black ban" in it titles or descriptions which I have no idea wtf is it meant lol
I think JAV interracial is also heavily heavily inspired by the famous western BMWF except they have different purposes.