Muhammad suffered from malignant narcissistic personality disorder. His followers to the degree that they emulate him, think like him and try to behave like him, have entered into his narcissistic bubble universe and have become narcissistic by extension.
This happens to all cultists. In all cults, the insanity of the guru reflects on the followers who surrender their intelligence to him and follow him unquestioningly and brainlessly.
The narcissists feel grandiose and self-important. They want to be acknowledged without commensurate merit. They want recognition and preferential treatment.
They expect respect without feeling any obligation to reciprocate. They get their sense of self-importance by putting you down, criticizing you, decrying your world and disparaging your values, but you are not allowed to slight them.
It's okay for them to violate your rights, abuse you and even kill you, but you are not supposed to mistreat them in the slightest way.
I fact, they demand privileges that are not available to others. What they want is your submission. That's what Islam is all about - submission.