Why don't low birth-rate countries make immigration to their country easier?
Wouldn't they benefit from more people? Of course it would come with the condition of learning the language at an acceptable level and that being tied to residency.
Why should they? How about we just accept that a shrinking population is the best way to keep the earth sustainable?
Japan sure doesn't have enough land to sustain everyone without global trade. When that global trade ends in a few years due to global food shortage, Japan is cooked. Better to reduce the population as much as possible until then.