The Koreans I know don’t want “unification” because North Korea is not a country they recognize as “the same” anymore. Maybe 50 yrs ago but that’s over a generation ago.

Also they think NK is a shithole.

https://www.cbc.ca/news/world/pyeongchang-olympics-korea-unification-1.4520151

https://www.thestar.com/news/world/2018/01/28/reunification-with-north-korea-unappealing-for-young-south-koreans.html