Among the many Japanese words and phrases that have fallen by the wayside of late and become shigo (obsolete), gaijin komupurekkusu (foreigner complex) is certainly among the least missed.
"Foreigner complex" referred to the attitude and behavior of some Japanese people who nurtured, for one reason or another, an inferiority complex toward certain outsiders.
I say "certain" outsiders, because those hapless, complex-afflicted Japanese folk did their furtive little inner bows and tugged their forelocks only in front of white foreigners. The foreigner complex was, in effect, a Caucasian complex.