It's self limiting. Overpopulated communities simply stop having kids because the resources aren't there. The problem is the delay. Europe is doing 4 day work

It's self limiting. Overpopulated communities simply stop having kids because the resources aren't there. The problem is the delay. Europe is doing 4 day work weeks because the workforce does not match and some countries do 6 days because they have excess workforce. But workforce can be 20-30 years out of sync with the current state. It's why immigration/emigration is a good thing too.