It is possible through the means of classical conditioning, operant conditioning, desensitization, and negative role models to program (brainwash) people to do something they would normally abhor. Military strategists, realizing it is repulsive for a normal person to kill one of their own species, have programmed people to override their compunctions and accept killing as normal and acceptable, just as the media with its hateful rhetoric has often been complicit to violence and murder. Video games have conditioned our young people to enjoy killing, glorifying murder and violence. God's people, if they become brainwashed by evil propaganda, allow their minds to embrace sin as their second nature, succumbing to the law of sin described by the apostle Paul in Romans 7. The best thing that God's called-out saints can do is to avoid sin in the first place (Romans 1:24-32) avoiding the reprobate mind which defiles us from the inside out. Media often transforms copycat murderers into celebrities. God's word horrifies us with the consequences of sin. Jesus' half-brother James clearly distinguished the evil, demonic worldly wisdom producing envy and confusion from godly wisdom from above, which produces a bumper crop of righteousness and peace.