It was always delusional to wish that Iran or Russia or North Korea or China... OR OURSELVES!... could be trusted... on almost anything.
Human history begins with higher primates forming tribes and warring over territory and resources... and continues to this day.
Beneath our vaunted but delusional conscious processes our mental. emotional and behavioral processes are compelled by our primate instincts.
Trump is just someone whose unconscious conflicts and anxieties are more exposed for all to see.
By contrast, Obama wore the perfect mask over his more primitive drives.
Link: https://www.youtube.com/watch?v=HkAK9QRe4ds