The point is that the Khmer Rouge are not Christians nor do they espouse Christian ideals. No, Roger, that was not what you were saying. You were trying to take some of the heat off Christianity by suggesting that skepticism was also associated with most of the great atrocities of modern times. On that point you rightfully got your ears cuffed by Till and me. Anybody with a hint of education was essentially marked for death.
Similar situations hold true for Soviet and Chinese communist atrocities.
One can no more blame skepticism than one can blame the communist love of children. Hutchinson's act concluded with his revised position. Nobody ever said that Christianity is the cause of atrocity. However, a tree is judged by the fruit it produces, and Christianity is intimately associated with much that is rotten, like the Dark Age, the Inquisition, the violent suppression of pagan religions, suppression of medical and scientific progress, violence against Jews, support of slavery, and countless wars over religious differences, including those of modern times in Ireland and Yugoslavia. Detailed study may identify a number of complex causes, but Christianity has its big, fat thumb in every one of those pies.