Comment by decimalenough

Sure. But the Korean War was in the 50s, all Chosen-seki in Japan are third generation by now, meaning both they and their parents grew up in Japan and have barely any connection to the Choson their grandparents left, much less the DPRK of today. So it just seems to be a bit of an odd hill to die on? If you feel more Korean, get a South Korean passport; if you feel more Japanese, get a Japanese one. (Hell, North Korea will happily issue them passports as well, they're just kind of useless for going anywhere!)

Also, for what it's worth, Chosen-seki in Japan are "special permanent residents" that can do basically anything a Japanese citizen can except vote. The travel restrictions for being stateless are not imposed on them by Japan, but by other countries, who generally view the stateless as extremely high risk for overstaying and/or claiming asylum.