We caribbean descents know otherwise. Most indian-black mixs (we call them douglaw) are very dark, with very long hair. You probably don't have as many in the US, so they assume it's somehow a white thing.My mom is african american and my father is south asian. It's funny. When I was a little girl my hair was fairly straight. Its now defintely 3c. I have corser hair around my ears and very straight hair at the back of my head. My hair is probably just past my armpits when curly. I do have a serious mixture going on it drives me nuts.
Meanwhile, people always ask me if my hair is fake. One of my really good friends told me this was because people assumed only lighter people had real hair that was long and not as densely curly (i'm fairly dark). Go figure.
Also, why is it all black americas say they are part native!? Was there that much mixing, because every american on the internet, says they are mixed with it?