Read a book recently about demographic ‘replacement rates’ and how low it was in South Korea and Japan (as well as a LOT of other countries, including in Europe).
Author pointed at Canada as a success story of reversing the trend. Offered an example of how immigrants, especially those who could start businesses or were educated could help with the demographic issue without impacting the economy.
But you have to first get around the xenophobia issue. A minister standing up and pulling the proverbial fire alarm is a first step.