That's what you get when you brainwash the population from a very early age to think of themselves as God's chosen, and to consider all their neighbors and everyone who disagrees with the God's chosen to be subhuman bloodthirsty barbarians with no redeeming qualities...

Even if we started right this very moment (not that anyone will, mind you), it would take years, perhaps generations of intense deprogramming effort to fix it, which makes me extremely sad :(