As I posted already, perhaps I used the wrong word as I was referring to someone from Israel (so I guess I meant Israelite) rather than Jewish (or Jew). Sorry about the confusion. Though, considering the context, I would think people would realize I was talking about nationality, not religion.
I'm just thinking about when we fill out forms and it asks if we're white, hispanic, etc. Europeans will select white even though they may have dark skin. WDYS makes it sound like you have to have pure white skin to be considered white.