They call him that because he IS one of the greatest NBA players. He's not literally a king, but to Basketball he is.
actually,
Lebron was known to be king of Ohio for being the best player ever in ohio, but now that he's in miami his nickname is Bron Bron.
Chat with our AI personalities
Yes indeed he is African American his parents were also African American which would make him African American as well and if you do not think this answer is correct you can go out and check his autobiography which would tell you all about his life.
LeBron James is black, as made apparent by his skill at basketball. if he has any other ethnicity, it doesnt show on the court.