I've read that the Japanese don't even fk anymore.
Something something androgynous beta soyboys and uninterested Harajuku manga girls.
I think their society might be doomed.
Whatever happens in japan, happens in 20 years in US/Europe (to a degree).
Example 1: interest rates at zero. Japan -from 90ies, US 2010-2018, 2020-2022 and maybe 2023-?
Example 2: manga (japan-10-20 years before, pretty much everywhere now)
Example 3: less interest in real sex (starting to occur in US as well based on anecdotes I hear). Fapping to Onlyfans doesn't count.