Hey, interesting responses from everyone!
My original post was specifically about the big bang theory, it's description as solid science and how I felt that was dubious. The observation that everything seems to be flying out from a central point is possibly explained by a big bang, but it's really just a best guess and says nothing about what was there before the bang. I'm not slagging off the theory but it doesn't seem to really answer "where did everything come from?" and I'm not sure we'll ever have the capability to definitively answer that. As such it seems perfectly fair to say it's just the creation myth without the creator.
However, I don't see religion as the biggest problem for civilisation, it's human nature that twists organised religion into a means of oppression. As a child I found the Bible (New testament, I went to a C of E primary school) to basically be about how you should be nice to people, think of others before yourself, etc. All admirable stuff that should make the world a better place. That people can twist that sort of message into an excuse for war is a ridiculous but unfortunate reality.
A few people said that Buddhism isn't really a religion. To me it's more like the only real (major) religion, specifically because it has a set of techniques that you can use to investigate reality yourself. I think "real" religion is about the nature of reality and consciousness, not about taking a set of rules and following them. This philosophical tradition actually exists in some old schools of Christianity and doubtless in the other major religions as well.
To me there is a whiff of fundamentalism to the current trend to be anti-religion and pro-science that has all the bad attributes of religious fundamentalism. However, the comments in this thread have all been very civil, which is refreshing! As long as we can discuss these things reasonably there's a good chance we can all get along! If we all agreed with each other on everything it'd be a pretty boring forum!