I understand what you're saying but that's my point. I have nowhere in Africa to say "I'm from this region" or "I'm from that group of people". Even though I live in the US I don't feel connected to it. My original first home is Africa and that is the motherland for me. I Identify as black because that is the one feature that we as black people identify with.
This is because originally we claimed a certain tribe and the europeans decided to label us as black, brown, etc. So I embrace having black skin because we have been discriminated so much just for having it.