Band-aid at best. Japan needs to make dating, sex, and family formation desirable to young people again by addressing its beyond-toxic work culture and renewing its postwar promises of lifelong economic security for those willing to take it. But of course it's not going to.
But that is DANGEROUS MARXISM, you know.
It could also accept more than zero young immigrants, but that's probably cultural Marxism so what do I know ¯\_(ツ)_/¯
It already does that, but Western liberals are always going to assume anyone Asian is some raging xenophobe racist.
Japan does have way more immigrants actually living there than most people in the West assume it does (some of the best Indian restaurants I've ever been to are in Japan!), but they're more or less permanently locked out of citizenship, which affects their ability to contribute in the full sense to Japanese society. I'm aware that you probably think this is a succdem multi-culti globecuck take but whatever, it's my position on this issue.
I assume you're talking about people on the relatively recent guest-worker thing (because there's nothing that inherently locks out other immigrants from naturalization) - and that's so new, it's hard to judge at all what the long-term status of people will be.
But yes, social democrats are "cucky", because they do tend to just surrender to neoliberals whenever they can find them - as has happened in almost every Western country.