When and how did the U.S. get addicted to supporting dictators

[KlatooBNikto]

against democratic representatives of people?I am referring particularly to Iran, Guatemala, Chile,Vietnam and on and on.This goes against our own traditions so much I can only think that a small powerful group within our country has been in control of our foreign policy without the consent of our own representatives.The other possibility, as Noam Chomsky has said many times, this consent is manufactured to give it a democratic veneer when it is nothing of the sort.