The more interesting thing about this is that it is part of a new type of economics, contraction economics. The global trend toward birth rates below replenishment means that first-world countries are maintaining their population growth through immigration. As some countries embrace restrictions on immigration, and ultimately all countries plateau in their population growth (projected to be around 2100) it means that…
Japan is not a very good proxy due to their strict immigration policies and preference to be an "ethnically homogeneous nation." As you mentioned, other countries can just replenish their head count through relaxed immigration. I'd wager, for example, that the US will remain highly multicultural with looser immigration long term since it's baked into its identity[0], despite some recent policy changes. 0. https://en.…
* If you graduated university and have a 'skilled' job in Japan, you are likely to get a visa. There is no cap on the number of these. There is no language requirement.
* If you live in Japan for over 5 years continuously you can apply for citizenship, though you must renounce any other citizenships.
* If you live in Japan for over 10 years you are eligible for permanent residency.
* If you are married to a Japanese national you can do any kind of work and get permanent residency in 3 years.
* If you have enough points on the highly skilled professional visa you can get permanent residency in 1 year. This is retroactive as long as you lived in Japan during that time, you don't even need to have had the highly skilled professional visa.
So, is it really an issue of policy? I think the causes may lie elsewhere.