Wrong.
I don't blame you though, you're an engineer, so am I (or rather an engineering student), which means english is probably not your forte. This is why I don't go around trying to correct everyone's grammar.
I have to admit it pisses me off a bit though when people act all cocky because they seem to know everything about anything. Which is the impression I get when reading your posts.
I don't think the initial 9/11 allusion was meant to generalize all religions as being violent. I think that it was meant to show that if there were no religions, there would be no room for extremists groups based on religions.
Of course it is obvious that when we look at the greatness of the human race, it is prettty evident that we would have found other reasons to fight each others, and that the absence of religion would've simply been filled by another brilliant idea of ours.
I am not christian, and I have my reasons. I do believe in science, but I don't think it has the answer to everything, since we need maths to solve most of our problems, and maths relies entirely on abstract concepts.
I would simply like to leave you on this quote, which hopefully will make you realize that what you are doing is pretty useless:
The strong belief proves only its strength, not the truth of what one believes. - Friedrich Nietzche
(Hopefully Google Translator did a good job on that quote, since the original one was :
La croyance forte ne prouve que sa force, non la vérité de ce qu'on croit.)