Another consideration in the collapse of societies is the existence of hostile neighbors who covet the wealth, jobs and standard of living of adjacent communities. Relations with neighboring societies may be characterized as friendly by diplomats and other government officials but the reality may be quite different. France and Germany, our post WW II allies, took on a noticeably frigid demeanor toward our country when the U.S. involvement in Iraq interfered with their interests in the area.
Similarly, although our relations with Mexico are often characterized by government officials as "friendly" and although Mexico may be our largest trading partner, this obscures some relevant facts. One of the cardinal sins in diplomacy is to interfere in the internal affairs of another country. When that happens, it creates a basic distrust and a cooling of the friendly atmosphere that might otherwise prevail. When Mexico's leaders publicly try to influence our immigration and trade policies they step over the line. When Mexico refuses to enforce its northern border and encourages illegal border penetrations, those are not the acts of a friendly nation. Mexico's interest and motivation are clear: the multi-billion dollar remittances from its citizens working in the U.S. and the relief it enjoys from the pressures of the impoverished people whom it is able to dump in America's backyard. It, and its apologists, justify this by pointing out the continuing supply of hard working labor it provides. But most see beyond this charade and see the unwanted changes it is producing in our country where whole cities have become entirely Mexican.
A society may be able to fend off its enemies as long as it remains strong. Poland was able to hold its neighbor, Germany, at bay for a certain time frame but its western provinces were eventually infiltrated by the Germans and school instruction in any language other than German was prohibited. After World War I, a plebiscite was held in that area to determine the preference of the people regarding which country they wanted to be a part of. Germany succeeded in stacking the deck through its "push" immigration policies and ended up with all of Silesia except the easternmost half of Upper Silesia which was awarded to Poland. Of course, neither country was happy with this outcome and as a result this became one of the factors that led to WW II.
The U.S. like Poland is being infiltrated by foreign cultures. They and their progeny are responsible for all of the population growth and increased resource depletion experienced in this century and the last half of the preceding one. Will the result be the same as it was for Poland? The chances are quite good that will be the case. Bankrupt California is one indicator of what the future holds in store. Although the change may be peaceful this time, it will nevertheless imperil the culture, language and institutions of America and perhaps even the foundations of Western civilization in its American manifestation.
Is a plebiscite in our future? Will many decide 50 or 100 years from now that they prefer to join their brethren in a Mexican Union or simply separate into the Estados Unidos de Aztlan. Whichever course they choose would not be unprecedented. Kosovo's separation from Serbia is only the most recent example. The real shame about all this is that 600,000 men will have died in vain in the Civil War to preserve the union.