As he is only too happy to tell you, Richard Dawkins is an atheist.
Of course being an atheist, it may be too much to expect him to know much about more traditional religions. But he writes about them anyway, as in "The God Delusion".
OK, we don't expect Dawkins to be an expert on non-atheist beliefs, but we *do* expect him to know evolutionary biology. But he can't let science stand in the way of his beliefs. See this for more.
Yes, atheism is a faith. Or at least it will be so until someone succeeds in proving that deities don't exist.