Because 1940s Europe was overwhelmingly white.
That’s why the image of a half black German kid in Nazi get up was considered fake (actually bastard of German mother and African client state citizen who studied in Germany for a while), why Othello was so provocative in the 1600s, why the half Indian woman who joined the radio corps was so distinctive - she was one of the only non-whites in the whole program ever.
hell you talking 'bout?