[mcv]

And yet people used to worry about overpopulation. Several countries already depend on immigrants to fill vital jobs, despite there sometimes being quite a bit of xenophobia towards those immigrants.

In the past, some people argued for a much smaller world population (however they imagine we could possibly get there), but now that it might happen, we realise our economies run on young people.

And yet we don't pay young people enough and we don't give them the opportunity to start families. Much of this is definitely also a policy problem: make sure young people can buy a house and start a family, can afford to raise kids, have time off with their family, etc.