Also different cultures can withstand different level of hardships. With population decline what kind of quality of life drop we are talking about? Even if people get 2 times poorer, it is still way above than whatever people had in old times. That level can easily drop way further and people can adapt.
I think it is even better to not have immigration as a solution, because it accelerates this whole problem and forces the society to search for other ways to solve the issue.
I think it is even better to not have immigration as a solution, because it accelerates this whole problem and forces the society to search for other ways to solve the issue.