While I'm not necessarily a fan of this particular article, I feel it relevant to point out that explicitly denying the "homogenous myth" of Japan has political value as a counter to its all-too-common use by conservative nationalist ideologues in Japan to casually brush aside the entirely valid concerns groups who don't check off all the boxes of "being Japanese".
> Those Korean-Japanese are no less Japanese culturally
To this point, however, on a somewhat lighter note, notice that the birth rate of Korean-Japanese shown in the article's graph dips sharply in 1966. This is due to it being the year of the Fire-Horse (https://www.wikiwand.com/en/Hinoe_uma), which AFAIK is a superstition unique to Japan. We're due for another Fire-Horse year in 2026, so it'll be interesting to see what happens then, too.
> Those Korean-Japanese are no less Japanese culturally
To this point, however, on a somewhat lighter note, notice that the birth rate of Korean-Japanese shown in the article's graph dips sharply in 1966. This is due to it being the year of the Fire-Horse (https://www.wikiwand.com/en/Hinoe_uma), which AFAIK is a superstition unique to Japan. We're due for another Fire-Horse year in 2026, so it'll be interesting to see what happens then, too.