The gods we make in our own image are tribal gods. They tell you how very, very little you should tolerate outsiders, who are less favoured of the Lord. Amazingly, there are no recorded cases of the holy man going up the mountain and finding that it's the others who are right. It always turns out that God wants unbelievers to suffer, and what could be more noble than to help him a little? When religion rules, toleration disappears, for you cannot cherish the verdict of death to the infidels, yet also tolerate those who disagree - for those are the very same infidels.