@Exiled
I understand what you mean, but most Western countries don't have the Yakuza running all sorts of sex slavery and crime networks in their country. The sexism that is apparent in Japan has much to do with the for profit nature of the Yakuza in exploiting sex crimes.
It's not so much normalized sexism, so much as the Yakuza have terrifying political power in Japan and they have essentially normalized prostitution and the sexual selling of both Women, Men and disgustingly CHILDREN.
God, so many problems in Japan stem from the Yakuza getting too much power after World War 2.
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This video explains a lot of why the Yakuza are so powerful and influential ,
the sexual crimes parts are at 9:53 and 12:17 respectively
https://www.youtube.com/watch?v=IDb1A95gQmY