Agreed. I'm all for inclusivity, but everybody knows (by and large) what a one's "dark side" means, and that it has nothing to do with ethnicity (which is what the GP is hinting at).. Viewers don't assume Dexter's *dark passenger" is a representation of a Black person, nor Dar(k|th) Vader (despite being dressed all in black, and coincidentally, even dubbed by a Black actor). Darkness is a well established idiom in psychology, and if there's any confusion about it, I wouldn't say it's "unwanted" - more like deliberately assumed, explicitly suggested, intended.