Open Question: Denying my “Blackness” may cause trouble with Black friends, what should I do?

This always happens to me. Not all dark people are African. My has dark skin and curly hair; she is semitic and her mother is Native American. OK, my father is semitic and White. Now, I sometimes become friends with Black people, sometimes they question my race, sometimes they do not. But when I deny my "blackness" it usually starts "friends" resenting me for hating "my own people", which is ridiculous. What should I do? This is the main reason why I avoid becoming friends with them because I always get this weird type of attitude. *my mom. And I have olive skin, Mongolian features so... I don't see what the problem is.