That indeed is the sad truth. Iraq is in peril because of the hate different muslim communities have among them.
Not sure how this situation changes because orthodox hot heads tend to be the ones people choose to follow.

Iraq was a peaceful country, before the Americans triggered the Iran-Iraq war in 1980 for their own selfish needs. Not only different sects of Muslims, but also other minorities such as Christians, Yazidis, Mandeans, and the Bahais were living in perfect harmony. Iraq was one of the few secular countries in the Middle East. But the Americans destroyed all that.