The problem is that a lot of writing from ancient sources e.g. Bible, Confucius etc. get discounted because of the language used. If you actually think about what they actually meant at the time a lot of the time there is a lot of wisdom in it but because of the language used it is too dense for most modern readers.

Unfortunately a lot of atheists just decided they knew everything once they realised that the Bible wasn't the literal truth. Many Christians wouldn't claim that and Atheists tend to point at the likes of Ken Ham to strawman the rest of the Christianity.

However I do appreciate Christianity in Europe is very different than it is in the USA.