alt Hacker NewsSwitzerland has a fertility rate of about 1.4 and decreasing, unless they do something, there won't be much of a country left in a few generations. Solutions can involve immigration or natalism, but something has to change.
Japan is worse.
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Or significantly increasing life-expectancy. Or new fertility technologies. A few generations is a long time.
The birth rates of the immigrant waves would presumably just plummet quickly anyway as they join the culture. Since that seems to have happened with all our other health problems.
A lot of people would rather live in their own aged society than a slightly younger foreign one.
Emphasis on slightly younger. Fertility is declining basically everywhere. Much of the developing world is now below replacement including India and China.
The solution to a low fertility rate is to… destroy the country? What’s the difference?
Africa has fertility rate 4.02 in 2025. Do you want Switzerland look like Africa?
I don’t know anything about Switzerland, but immigration isn’t a solution to the prospect of Japan “not having a country left in a few generations.” There might be more or fewer people living on the islands, but “Japan” will be gone either way.