Manga, anime, jRPGs already have inclusion, of sexual minorities at least. Japan’s not a particularly multiracial society so the lack of explicit racial diversity is somewhat to be expected.
However, their ‘representation’ happens to be both more relevant to the genre they write in, more sympathetic, better written, and more humane. They write people, not cardboard cutout political statements.
Pretty much every significant fictional character that in any way improved my view of sexual minorities was created by the Japanese, and they did it via humanization and tonal consistency, not glorification or flanderization.