I disagree that all humans are ruled by their emotions. I'm not. And it wasn't the vagueness of religion that made me an atheist - it was simply a "WTF? They expect me to believe THAT?" moment.
I had gone through my life up until I was 13, seeing what was in this world around me, and learning how to deal with it, like all people have to do. I wasn't surrounded by religion as a child, which I am eternally thankful for, and so when I got sent to a Catholic High School and they started "teaching" us things like, "And then God sent down a flood," well... my immediate reaction was literally WTF? It just seemed "additional" to what I had already learned about the world. There was no proof, and it was pretty far out there. It was my first touch with religion, and I already thought from that first moment that it was a load of old hooey.
So no, it wasn't vagueness. I understood what they were trying to teach me, and I saw no reason for it. Basically, God was the question, answer AND argument in between - it simply didn't relate to my life. If I had been raised to believe in God, then I'm sure at High School I would've thought, "Why?" and answered, "God?" and then asked myself, "God?" and answered, "Yes, because God." It's a self-contained system - you assume 1 thing, work through some complex arguments and wind up back at your assumption, only you've told yourself that you just proved it.
It didn't sit well with me. Let's just leave it at that.
I'm more opinionated about the fact that I'm not ruled by my emotions. I'm ruled by my thoughts - when I do something stupid, I can always trace it back to a falsehood of thought. When I do something I'm happy with, I can always remember the thought that made me want to do that. Emotions come afterwards, and aren't very strong (for me, at least).
I will acknowledge the following: I'll use depression as an example. Depression is an emotion. When I'm depressed, my thoughts are somewhat different to normal. So an emotion can hold sway over thoughts, but in the end, even when I'm depressed, my actions are still based on thoughts, and I have a fairly tuned censor in my brain, letting me know whether certain actions would be okay or not, or whether they are "like me to do that" if it's a grey area.
But even with depression, I don't "feel" very much at all. I'm not "moved" to speech or action by a "feeling" inside. For me, it's all thought.
Disclaimer: I've said, "For me" a number of times - and that means exactly what you think it means - for me, and not necessarily for anyone else.
But bringing us back to Dawkins - the only complaint I have with him is that his books "The God Delusion," and "The Greatest Show On Earth - Evidence For Evolution," didn't PROVE there was no God. So I was mildly disappointed, though I kind of expected as much. If he had PROVED there was no God, the world would be in an uproar and you couldn't NOT know about it. He DID provide very good reason to not believe, and unlike Jamesaritchie, I don't think his arguments had been "Shot down 500 times". His attempts at proving there is no God could be shot down, but his evidence for evolution (as an example) was impeccable.
Also, I think he's only responding as fiercely as he is because of the reception he's received - he's devoted his life to understanding Darwinian evolution (and took it to the next level with The Selfish Gene - great book) and nowadays, religions worldwide are moving for evolution to be stricken from the record. I think Dawkins saw the coming of another Dark Ages, where we attribute everything to the boogeyman in the closet and throw down scientific understanding (and indeed, a lot of decent morals, as I think Ruv was touching on) - that's certainly the impression you get from religious sects seeking to expunge an important piece of science. And so Dawkins defended himself as feverishly as the Pope would defend God.
The real friction comes from the fact that the 2 opposing sides are basically at a stand still, both sides saying, "You prove it." "No you prove it!" "Nyar nyar nuh nyar nyar, prove it bitch."
In the end, if either side could prove their claims, the world would be a much darker place. But it does create a lot of friction. Dawkins happens to be a leading expert on evolution, and so he's come into the firing line. He didn't lay down and take it, which I can respect, but now he's seen as the Devil of science - a complete bastard. It's all circumstantial. There's nothing special about what Dawkins has done in defense of his beliefs - the same thing has been happening for thousands of years.