There might be no ideal, but it's very much preferable that everyone has a good run and nobody has to kill their kids or die of pneumonia at 20 or some such.
How much to breed is a separate question, but equilibrium with the environment doesn't have to be at the point of paleolithic misery.
How much to breed is a separate question, but equilibrium with the environment doesn't have to be at the point of paleolithic misery.