BTW the police doesn't cares how lil or how much mixed you are, you may be half, a quarter, or a sixth black, at the end of the day if you are not white, you are black all the same
Now are mixed people culturally African American? that depends of how closely they were raised next to a black American community, this is why afro caribeans, afro latinos, or people from the motherland, don't share the same values even if they too are black
Race is really a social construct, a narrative tool used to oppress others, same reason why the Irish and Jews are denied being able to claim and pass themselves as white, despite having the same skin color, it is all a construct
Now to address what everyone is thinking, so is Neo then able to use the N word? here's the thing, Neo wasn't raised black, and he is only claiming his heritage when it is convenient for him, so personally until he is ready to own it and be proud of it, i don't think he should use it, and here's the thing the character is written with this in consideration, he doesn't goes around calling everyone nigga, unlike Rex, because he is aware that his status as mixed allowed him to grow up under different circumstances, while he has his own issues, they don't boil down to institutional racism based on his skin color