An artist could create a story in which a white person dies and goes to a fictional and magical Japan or a fictional and magical Africa, and it wouldn’t be a problem because there are no limits to fiction. But if they made a story in which a Mexican person dies and goes to a magical and fictional Europe, there would be problems. Why are there no limits for white people in fiction, but are there limits for minorities?
Shows from Korea have mostly Koreans. Shows from China have mostly Chinese. Shows from Brazil have mostly Brazilians.
I’m really confused on what you are talking about. Maybe you just need to watch a wider variety of media.