Over the centuries Religion has claimed morality as the reason for killing/many deaths. A truly moral person, one who truly thinks about what is right and wrong, would want to denounce Religion. The brain-washing that occurs in religion is the least of their immoral practices.
Religion is selfish. People get involved in religion so they could live in the afterlife. They could care less about morality.
Well put
The afterlife is the narcissistic belief the party can't go on without you.