Morality requires God
This claim is a special case of the claim that morality requires religion.
The clinical term for people who behave decently only on threat of pain and/or promise of reward is "psychopathy". This claim is therefore equivalent to a claim that humanity is generally psychopathic. Studies show, however, that psychopaths actually make up only about 5% of the general population.
This claim is therefore absurd if applied to humanity as a whole or to the overwhelming majority of individual humans.
It may, however, be applicable to the majority of religious leaders, as psychopaths account for a disproportionate percentage of people in positions of power.
If moral behavior requires knowledge of punishment and reward from a being more powerful than humanity, this implies a few things:
- Humans did not behave morally before discovering/inventing this particular form of God (e.g. ancient Romans, ancient Egyptians, Mesopotamians).
- How, then, did civilization arise, if nobody could be bothered to treat other people decently?
- Entities who have not received instruction in this aspect of religion do not (or cannot) behave morally.
- Non-human animals cannot behave morally, since they cannot receive religious instruction.
- There has recently been some evidence against this...