He's hit the nail on the head here. Our national faith is redemptive violence. From the showdown at high noon, to the masked man on the horse, to the cavalry coming over the hill at the last moment, we believe that violence can be redemptive.
But is that in the New Testament? Think about that for a moment. If you think it is, then you had better excise a good bit of the New Testament to make it fit. Anything that talks about the emptying of self, of death to self has to go. And I believe that is the core of the gospel. Our life dies so that Christ's life can live in us...despite some of the photoshopped pictures out there, I don't believe for a second that Jesus would carry a gun.