As it is often said, societies are less often murdered than commit suicide.
In our time all Greece was visited by a dearth of children and generally a decay of population, owing to which the cities were denuded of inhabitants, and a failure of productiveness resulted, though there were no long-continued wars or serious pestilences among us. If, then, any one had advised our sending to ask the gods in regard to this, what we were to do or say in order to become more numerous and better fill our cities,—would he not have seemed a futile person, when the cause was manifest and the cure in our own hands?
For this evil grew upon us rapidly, and without attracting attention, by our men becoming perverted to a passion for show and money and the pleasures of an idle life, and accordingly either not marrying at all, or, if they did marry, refusing to rear the children that were born, or at most one or two out of a great number, for the sake of leaving them well off or bringing them up in extravagant luxury. For when there are only one or two sons, it is evident that, if war or pestilence carries off one, the houses must be left heirless: and, like swarms of bees, little by little the cities become sparsely inhabited and weak.
– Polybius 140 BC
Read that, then think about how many Americans don’t have children because they a) fear divorce or b) fear being unable to pay for college educations.