It's hard to say who is making a mistake. The border is very thin between berbers as a cultural and an ethnic group. A berber ethnically, but arab culturally, doesn't count in your census? I agree with you about the joshua pjct.
 I'm going back to the last version by me. Please do not revert changes, just make others (take off what you disagree about or add tags (like dubious or citation needed)). Let's be productive. We won't pass a lifetime on this subject.