If each human family were dependent only on its own resources; if the children of improvident parents starved to death; if thus, over breeding brought its own “punishment” to the germ line — then there would be no public interest in controlling the breeding of families. But our society is deeply committed to the welfare state, and hence is confronted with another aspect of the tragedy of the commons.

In a welfare state, how shall we deal with the family, the religion, the race, or the class (or indeed any distinguishable and cohesive group) that adopts over breeding as a policy to secure its own aggrandizement? To couple the concept of freedom to breed with the belief that everyone born has an equal right to the commons is to lock the world into a tragic course of action.
Killing Times: The Killing Times are Here: Population Policy || Depopulation or Perish || Tragedy of the Commons

“… World population growth is widely recognized within the Government as a current danger of the highest magnitude calling for urgent measures…… it is of the utmost urgency that governments now recognize the facts and implications of population growth, determine the ultimate population sizes that make sense for their countries and start vigorous programs at once to achieve their desired goals.”

“… population factors are indeed critical in, and often determinants of, violent conflict in developing areas. Segmental (religious, social, racial) differences, migration, rapid population growth, differential levels of knowledge and skills, rural/urban differences, population pressure and the spatial location of population in relation to resources — in this rough order of importance — all appear to be important contributions to conflict and violence… Clearly, conflicts which are regarded in primarily political terms often have demographic roots. Recognition of these relationships appears crucial to any understanding or prevention of such hostilities.”

“…there is general agreement that up to the point when cost per acceptor rises rapidly, family planning expenditures are generally considered the best investment a country can make in its own future.”
~ National Security Study Memorandum 200: Implications of Worldwide Population Growth ~

Of course there will be water wars when there are more people than can be sustained, especially in many African countries, India, China…

so… “I can has baabee”