The spiritual leaders has more responsibility before God than the members.
I would blame more to the leaders on how their members behave.
If they are trained and disciplined according to God's Theocratic Law, there will be no violence. Love would prevail. But seems the leaders themselves do not show good example eh?
What good tree would produce bad fruits?
The quality of God is Love. Is fighting in war (one nation after another, one religion after another ) approved by God?
Does God told the Priests to bless the soldiers and their weapons before going to war?
There are so much to learn from past mistakes.