Smart.
But if their birth rate continues and they don’t import some people, the Japanese will disappear from Earth. (And they build robots to keep them company in the meantime.)
Same problem in Europe. They need immigration to survive. The question is how much of their culture they’re willing to give up in the process.
The US is barely holding steady.
https://en.wikipedia.org/wiki/Total_fertility_rate
“The US is barely holding steady.”
No it’s not. The US fertility rate has been below minimum replacement level (2.1) since 2008. But the problem in America of not having enough children to replace the older generations goes back to the mid-1970s.
http://www.pewresearch.org/fact-tank/2015/02/24/is-u-s-fertility-at-an-all-time-low-it-depends/
Bull, the replacement rate thing is a myth. A slow decline in population is not a bad thing.
Japan is a country of 120 million people on an Island. When their population shrink to 1 million people, they will still be all right. The country will remain Japanese.