This pathology can be traced back and attributed to a confluence of historical events and processes, the equivalents of trauma and abuse in an individual's early childhood.
The United States of America started out as a series of loosely connected, remote, savage, and negligible colonial outposts. The denizens of these settlements were former victims of religious persecution, indentured servants, lapsed nobility, and other refugees. Their Declaration of Independence reads like a maudlin list of grievances coupled with desperate protestations of love and loyalty to their abuser, the King of Britain.
The inhabitants of the colonies defended against their perceived helplessness and very real inferiority with compensatory, imagined, and feigned superiority and fantasies of omnipotence. Hence the rough, immutable kernel of American narcissism.
Americans' religion is a manifestation of their "Chosen People Syndrome". They are missionary, messianic, zealous, fanatical, and nauseatingly self-righteous, bigoted, and hypocritical. This is especially discernible in the double-speak and double-standard that underlies American foreign policy.
American altruism is misanthropic and compulsive. They often give merely in order to control, manipulate, and sadistically humiliate the recipients.
Consequently, the United states always finds itself in company with the least palatable regimes in the world: together with Nazi Germany it had a working eugenics program (the 1935 anti-Jewish Nuremberg Laws and the Nazi sterilization law were modeled after American anti-miscegenation and sterilization statutes), together with the likes of Saudi Arabia it executes its prisoners, it was the last developed nation to abolish slavery, alone with South Africa it had instituted official apartheid in a vast swathe of its territory.
Add to this volatile mix an ethos of malignant individualism, racism both latent and overt, a trampling, "no holds barred" ambitiousness, competitiveness, frontier violence-based morality, and proud simple-mindedness - and an ominous portrait of the United States as a deeply disturbed polity emerges.
First published here: