In reference to what you were saying about the use of predominantly white actors (with exception of voice actors), you have to keep in mind that the company who's making the content, whether it be a movie, game, commercial, etc. is going to appeal to the demographic that will likely make them the most money, which does, at times, have a tendency to be white people. However, ethnocentrism isn't always focusing on one ethnicity for a good reason. For instance, and this is not directed at you in particular Ame, or anyone on Reborn really, it is fairly common to slander white people, particularly within other ethnic groups, but if the tables were turned and the whites were slandering others, it would be considered racist. A classic example is the title of the movie 'White Man Can't Jump'. This isn't seen as racist, and is even seen as humorous. However, if a movie with the title 'Black Man Can't Swim' was made, the public outcry would be absolutely ridiculous. While I'll acknowledge that mass persecution has occurred in recent history, I do not believe that it is occurring as severely as many people believe today. Hell, for literal education opportunities, being a white male is the worst possible turn out, as you have less options for scholarships in comparison to females or ethnic races, and also have lower acceptance rates into colleges in general. If you ask me, it shouldn't be about promoting and advocating the upbringing of any race, but promoting equality between all races, and for that matter, all genders, sexualities, and whatever else separates us. To be frank, we're all human, and that's what matters, yes?
Also, not to be "that guy", but the term ethnocentrism really gets my goat. White is not an ethnicity, and neither is Black, African, Asian, Latino, etc..German is an ethnicity, Kenyan is an ethnicity, Korean is an ethnicity, Brazillian is an ethnicity, calling people white or black applies more specifically to race, which is probably why it's called ethnocentrism. Straight up calling it racism would probably seem much more negative.