I have been to over 50 countries, lived in 9, including Japan, and I cannot think of any national, regional or cultural group more honest, kind and altruistic than the Japanese. Yet almost all Japanese are Atheists. There are two official "religions" in Japan, Buddhism and Shintoism, but neither has any concept of personal god or heaven like in monotheistic religions, and neither have any religious dogma or moral code. Japanese people receive no religious education at school either. Yet that does not prevent Japanese society to be one of the safest in the world, despite the fact that they have very big cities and high population densities, two factors that usually correlate with increased violence in other countries. Japan is a perfect example that people can be good to each others and peaceful without any help from moralistic religions like Christianity or Islam.
In Europe the most peaceful countries are Scandinavian countries, which also happen to be the least religious.
In the USA, the most violent states are usually also the most religious (Bible Belt). Louisiana, Mississipi, Alabama, South Carolina, Tennessee, Arkansas and Georgia make up most of the states with the
highest murder rates. These are exactly the
7 most religious US States according to a Gallup poll. In contrast, the states with the lowest murder rates also happen to be the least religious (Vermont, New Hampshire, Maine, Massachusetts, Oregon). Still convinced that Christianity bring peace on Earth ?