Slowing population growth could benefit the nations where people still want to live. Benefit democratic ideals.

Elon Musk is worried about the population bust with it's potential drag on world economies.

Instead of that, it looks like population is shrinking in places like Russia, where people are trying to get out, but population is still growing in places like Canada, where people are waiting at the borders trying to get in.

If economic growth follows population growth, countries like Canada, with better respect for diversity, will grow. This sorting out of nations could benefit democratic ideals, however worldwide economic growth can still present problems such as climate change.