> If Hudlin doesn't realize that Bishop isn't black, I gather that it would be because he has never been established as not being black. His creator created him to be black, but later events as well as non-canon things such as handbooks and trading cards have cause people to speculate on the possibilities of him being Aboriginal, Filipino, and even a descendant of Storm (which would make him black). But most fans view him as black and his Ultimate Universe counterpart is African American as well as the man who portrays him in the X-Men movie.
ACTUALLY in X-Treme X-Men Bishop is shown as being the grandson of Gateway, the aboriginal teleporter who served as transportation for the X-Men when they lived in the outback. That pretty much put to rest any speculation you or others had. I think that series was canon, but hey maybe I'm wrong..
> ACTUALLY in X-Treme X-Men Bishop is shown as being the grandson of Gateway, Great-grandson
That still leaves seven other great-grandparents of Bishop who could be black. Why assume they're all Aborigine?