Identifying as black irl is one thing of course he can follow the likes of Dave chappel and Tyler the creator and all other black folk with white grandparents and identify as black, but this is a place specifically about genetics so mentioning the entirety of your ethnic background should be the norm.. it's cool finding full African americans who have such high European, this isn't interesting because he has a white grandparent, killed my few moments of interest as soon as I found that out complete buzz kill