It’s a truth universally acknowledged that the media industries are dominated by white people. Persons of color are often overlooked.
Some say that POCs don’t sell, while others claim that there were no POCs at that specific era (for certain historical fiction). As expected, white become the standard. They would make the effort to choose anyone other than POCs since it’s what everyone else is doing.
Sadly, this includes the publishing industries. They often choose to publish books with Asian rep by white authors, rather than Asian persons who write their own stories. This resulted in many readers, including me, who started to think that being white is better and ultimately, being ashamed and rejected their own culture, since our favorite fictional characters at that time were one.