Oxford definition of culture is "the customs, arts, social institutions, and achievements of a particular nation, people, or other social group." I think it's fair to say my upbringing is far removed from the upbringing of American black communities. I was not implying that black Americans are not from America. Not sure how you interpreted this as such. (Quite a linguistic acrobatic feat on your part.) But yes, I was unaware (and probably still am to an extent) of my personal bias related to the black community. This was the main point of my essay. Not sure about Israeli Jews and anti-Palestinian bias since I'm not Israeli and I've never been to Israel.