Human overpopulation seems to hyperfocus on subsistence ie we aren't overpopulated until people start dying due to no more food or water. I would like to see m

Human overpopulation seems to hyperfocus on subsistence ie we aren't overpopulated until people start dying due to no more food or water. I would like to see more models around first world overpopulation. ie what growth rate etc is good for keeping a first world standard of living without changing the way of live of the current population.