Narcissistic Abuse Syndrome is a thing...

[Maastricht]

…and looking at Trumps effect on America as such might yield insights.

Link to an essay on narcisism and the effect it has on the victims of the narcissist:

One more link.

NPD (Narcissistic Personality Disorder) occurs when a man or woman suffers from deviant or abnormal personality behaviors that are so bad they create a trail of destruction or carnage upon those closest to them.

Victims of Narcissism may display a cluster of symptoms such as:

Disassociation
Trauma
Avoidance of Personal Interaction
Anxiety
Sleeping or Eating Difficulties
Memory Loss or Impairment
Constant Fatigue
Depression
Lost Sense of Self
Confusion
Flashbacks
Anger/Bitterness
Hopelessness
Self Harming
Loss of Interest/Detachment

[ratatoskK]

Don’t have a specific answer for the OP but I just readthis acticle about Trump having “malignant narcissism.” It’s interesting and it describes (briefly) various types of narcissism.