… is from page 237 of Michael Huemer’s 2013 book, The Problem of Political Authority  (footnote omitted):
Due to their monopolistic positions, governments can afford to make extremely large and costly errors without fear of being supplanted. For example, the estimated combined cost of the U.S. wars in Iraq and Afghanistan is $2.4 trillion, and yet the U.S. government need fear no loss of market share as a result of this dubious investment. If each American could choose between a government that carried on these wars and one that did not and if each individual were guaranteed to actually get what he chose, then even the most ardent hawks might find themselves thinking twice about the price tag. Fortunately for the government, individuals have no such choice.