In the past the ruling class could always count on the proletariat (literally "offspring producing") to reproduce itself no matter how abysmal its conditions. Y

In the past the ruling class could always count on the proletariat (literally "offspring producing") to reproduce itself no matter how abysmal its conditions. Yet today we find ourselves in a situation Malthus could not have expected: the proletariat is on reproductive strike! The ruling class response is to push an ideology of mass migration that no one dares question. Who will stand up and say they don't welcome immigrants? Not I. This solution seems to be working in the short term, but if birth rates decline in the developing world, there won't be anyone to mass migrate. Then what? Share the wealth?