Perhaps most of us can assess something like this and decide for ourselves on the available evidence as to its truth and relevance. What the author claims seems, to me at least, a minor issue. I get it that you do not agree. More generally aside from outright lies and pure stories, there are always analogical levels of interpretation. Presumably, if an unbeliever, you're irate at many of the world religions.
Well, I was 9 at the time and it was probably the first "science" book that I had read and got excited about.
And no - never been impressed by any of the major religions - although (possibly influenced by Philip Pullman) I do wonder if there was a completely normal bloke in the middle east at the relevant time who suggested it might be good to stop being complete shits to each other...