I do think the christians of the 1st crusade who murdered all the jews in their way, and all the cristians who came streaming out of church after holy week sermons from John and Matthew, and proceeded to murder all the jews in their local ghettos were savages by any reasonable definition.
But I don't think the christians who supported Hitler and the SS were "savage maniacs". Why should I think modern ones are? You don't need to be a savage to kill people if you own tanks and airplanes and zyklon B production plants. You can kill in a very civilized and restrained manner--almost offhandedly--almost neglegently.
Are you planning on seeing The Passion?
Of course, how could I resist now?