If when there were no monotheism there were still killing each other,what is your point there corrector? You are just being pedantic. The Hindoos have hundreds of gods,but still indulge in wars to protect themselves against Islamists. What does defending ones self to do with religion? It began with Cain And Abel..And continues to this day.Long before there was such thing as RELIGION.Besides since the creation of the world MEN have always had to find in something to believe in.Stars,the moon,trees,etc,etc. You cannot generalize it sorry.
India hangs only man sentenced to die for 1993 Mumbai blasts (AP)
from the article: Ritual terrorism: Hating Obama as a new form of religion