Christianity is by no mean harmless, nor does it lack power. Just because a good portion of them have realized that if they do bad "GOD" won't strike them down doesn't mean the evangelical Christian doesn't have plenty of power. With every mass shooting or natural disaster they gain more "proof" to their cause.
Christianity may be person with a gun, the power of which would be determined by the bullets it uses, but there really isn't that big of a difference between ammunition being used to kill innocent people, ammunition being used to fight a just war, or ammunition being stored in a warehouse... it's ALL ammunition and it ALL has potential power. The ONLY difference is the will of whoever is holding the gun. So when you dismiss Christianity as a faith as something that lacks power, you are dismissing the WILL (faith, maybe) of person themselves (which you are correct about) but not addressing the potential danger a person would have if they just had a tighter grip of their loaded gun (in the above example).
With that, yes I tend to agree with you Cofty... but only because of statistics and trends... not because I think Christianity itself is something to be passive about. The world is growing up... we can now put the talking snake and bloody cross into perspective. But make no mistake about its potential, a country run by evangelical christians would look no different than any country in the Middle East. In modern times, maybe more like the United Arab Emirates (Dubai mainly) or Egypt... maybe a few decades ago it would look more like Iran.
Christianity and Islam are practically the same religion anyway, just with different wardrobe. The core and structure of the two are identical... they just pray in different directions, so there's no reason to believe the extreme versions in political terms would be that different.