Long story short, his parents treated him really poorly compared to his golden boy brother and rejecting their culture was his way of rebelling. On top of that, this was in the early 2000s which was a really unfortunate time to be that particular shade of brown in America. Add in an obsession with escapist media, most of which starred white guys, and you get my buddy. Luckily, he has mostly dealt with the internalized racism after some therapy and talking through these issues.