Why American always destroys the Democracy in Middle Eastern and central American and LOVE dictatorship ?

American like dictatorship because they tear aparts the government of Allende and make Pinochet the dictator. American like dictatorship also because they put oppressive Shah in Iran. American like dictatorship because they support Contras in Nicaragua. American also like Battalion 316 in Honduras. American like to destroy democracies in central America and in Middle Eastern. Why American like dictatorship?