I meant it’s shrinking without immigration, yes. As more and more countries are developed, less and less countries have population growth, so there’s also no population growth through immigration anymore (when one time the people from the few countries that still have population growth are distributed among so many countries without population growth).
It is solving itself if we keep working on helping countries to become developed.
Sounds like a good way to afford your hobby, but nothing you can live off when having to compete with big players like refurbed that can outsource the work to low wage countries.