You might be looking for way too literal meaning behind the lyrics, which are primarily about imagery and symbols. "Visions of swastikas in my head - Plans for everyone - It's in the white of my eyes" is imagery, that may well be a remnant of Bowie’s Berlin period, as well as a cliché that immediately neutralizes your literally taken insult... Then again, "China Girl" has been called a metafore for (drum roll)... opium.