Because Christians believe that Jesus Christ suffered for the sins of others, they use this belief for their own purposes by "letting Christ suffer while they, the Christians, go on committing sin and crime." That is why the Christians go on slaughtering the Non-Christians, totally worry-free and with a totally clean conscience, because Christ will take care of their sins and crimes, and because they don't have to face the laws of Karma and Re-incarnation or the veritable consequences of these laws. It does not even occur to an average Christian to ask himself/herself a simple question, that if a person commits a murder and he tells the court that his Father will suffer in his place, will the court accept the substitute to suffer the sentence? An average Christian does not even think that if any court accepted this kind of substitution, then the justice system of the world, as we know it, would be totally destroyed and chaos would ensue.