Andrew Sullivan sees Mel Gibson as a prototype, not an aberration:

Yes, the man who viewed John Paul II as too liberal is actually a lefty. But what we see in this dialogue is deeply revealing, it seems to me, about Gibson’s mindset and the fundamentalist psyche that is undergirding politics and culture the world over.

He is a deeply disturbed man whose “spirituality” is wrapped up in extreme violence and fascist imagery. What motivates him is clearly power – heterosexual white male power – imposed on others by raw violence or the threat of violence. He is a fascist in temperament – which is why racism and anti-Semitism and murderous hatred of gay people come naturally to him. And this is how he sees himself as a Christian.