Random thought: Would the world be more peaceful if it were polytheistic?

Most of the major world religions are monotheistic. More than just monotheistic, but each believes that its incarnation of God is the only way to see God and that everyone else is some form of infidel. But what if people recognized Abba, Yahweh, and Allah as different gods and Heaven as different for each religion. Would that make for a more peaceful world as the Gospel of I'm-Right-You're-Going-To-Burn no longer made sense? Or would it be much like it has been where different religions underwent campaigns to eradicate the other religions?