Yakuza are Japanese so why does South Korea have a problem with tattoos?

https://www.quora.com/Yakuza-are-Japanese-so-why-does-South-Korea-have-a-problem-with-tattoos/answer/%E6%A1%91%E7%94%B0-%E5%81%A5%E5%8F%B8-Kuwata-Kenji?prompt_topic_bio=1

The present yakuza is made up of Korean-Japanese and Korean.

They hijacked the Japanese Yakuza society.