Sundiata
It is interesting that you now find yourself ‘choosing an ethnicity.’ If your parents did not find one for you since birth, no wonder you’re confused! I believe you have to ask yourself several questions: How do my parents identify me? How do my friends and people I interact with identify me? How do I identify myself? If you can believe you are more comfortable with one ethnicity (without denying your other heritages) than the others, accept that as your identity. Stay away from prejudicial remarks; accept only cultural facts, do some research, and if you find more answers pointing toward one culture, that might be yours. This society unfortunately bases many things on color, but your identity should be based on what you believe and understand to be you.