I’m my understanding is correct then no one has ever committed blasphemy as of yet. Blasphemy is when we are called up before the anti-Christ and refuse to let the Holy Spirit speak through us; that’s just my understanding of it.
As a psychologist I can say that narcissistic personality disorder is not that common. Many times we tend to see the faults of others as narcissism when in reality they may have several small issues to work on. 😊