Let us face the fact that The God Delusion is a great book.
It is a great book if you want to witness the utter bankruptcy of Atheist apologetics.
It is great for a window into how very, very popular one can get even whilst basing arguments on poor history, poor logic, poor science and poor biblical hermeneutics.
Great for seeing how a scientist can actually appeal to “luck” in order to explain life and the universe itself.
It is actually a great heuristic device as you can learn a lot by correcting its very, very, very, very many fallacies as you go (see here, here and here for examples).
This was supposed to be Richard Dawkins’ magnum opus which he said would cause people to become atheists by the time they read it, then he downgraded it to being useful in appealing to fence sitters (see here) and finally, he said that it was a funny and amusing book (see here and here).
The entire text is available online and the great thing is that you can use the Ctrl+f function on your keyboard to search it. So, for instance, if you want to see how ignorant he is about Adolf Hitler and Nazism and see how he correlated anyone with whom he disagrees (see here) with Hitler and Nazism you can search for those terms (and search “Neville Chamberlain” as he thinks that not being as extremist about evolution as he is, is tantamount to acquiescing to Hitler).
You can find the free e-book online at this link.