AJ: So the urge to promote one’s religion on others is a natural phenomenon.
What can we expect out of humanity, without a godly influence?
John: I'm not angry at God, but at the idea of attaching Him or His spirit to demonic Church actions.
Sorry to be reductionist here, my reading of this is basically a "yeah-but" argument.
Yeah: People are going to feel compelled to promote their religion (to the point that AJ argues this is a natural phenomena).
But: Those people / institutions who did bad things in the name of their religion aren't really following their religion.
It's easy to concede that the people / institutions that do bad (hideous) things in the name of religion are at best likely misguided, and are at worst purposefully wrapping themselves in the shroud of a religion to try to justify self serving (yet violent, bad and hideous) actions.
Why people and institutions do this is a struggle that each religion should challenge itself to overcome, but not the topic here.
What I, Dawkins and others can easily see is that there is a clear pattern that where religion is involved, the pre-disposition of religion to claim a moral authority without any evidence creates a social environment that allows people to commit these bad and hideous acts either individually and / or (more detrimentally) collectively . These people can under the religious influence commit these acts because they believe the acts morally justified by the religion.
The atheist example is that where there is no religion to justify otherwise unjustifiable actions the individual either needs to accept responsibility for their own actions, or find a different motivator. Now, we're not claiming there are not other motivators... but, it would seem to me none quite as powerful, or as easy to claim moral authority with.
For example, there is an argument to be made that political idealism can be equally as motivating to allow people / organizations and states to commit horrible acts. The difference I would put out here is that political ideology (however flawed it is) generally needs to at least attempt to base itself in some sort of tested fact. For example, Kenysian economics vs. Smith economics. Also, people in general tend to be more skeptical about politics than religion. Finally, even though politics can commit some horrific acts the commission of those acts are usually framed in the language of necessity, collective preservation, collateral damage etc... When politicians go to war they motivate the masses by telling them that they are protecting their families, their homes, their land from a menacing other. The masses need to be convinced in some way by some (faulty though it may be) proof of this other. There is a basic acknowlegement that terrible acts will be committed, and they are accepted rightly or wrongly based on the proof of need and proof of threat.
To contrast religion allows people / organizations / institutions to commit horrific act without even accepting the horror of them, as they are pre-determined to be morally justified by the moral authority of the religion.
Again, little of this comes down to if they who committed the bad act should have or should not have based on what followers think the religions actually does or does not teach, but the proof is there, widespread religion has produced widespread violence.
So, is religion the root of all evil? Or, is it possible to have religion that does not create conflict?
However peaceful the intentions of the religion it seems that this does not preclude the ability to turn the religion into a moral bludgenoing tool with which to beat down those who do not agree with the religion.
I would argue that the only way that it seems possible for a religion to exist in a state / mass population without creating conflict is for the moral obligations of the religion to remain internal to that religion.
So, this is how we arrive at the question of if it is in fact human nature to (if that human has a religion) promote religion.
If it is, then we can assume religious conflict is inevitable as long as religions remain, and perhaps we need more atheists like Dawkins who aim to see the end of religion.