In psychology, there is a term called the Dunning-Kruger effect, which says that a person with a very low level of skill for something also lacks the ability to recognize higher skill in others, or even fails to acknowledge that skill is required to perform the task well.
The United States has an extremely unskilled president. He might not even understand why people think he is bad at his job. No wonder he throws tantrums and obsesses over conspiracy theories.
Of course, this is not an excuse. It only makes Trump even less suited for his job.
