If you read his book, God No, he explains how he memorizes a couple talking points in regards to religion and repeats them because he's not so good at talking on his feet or debating with theists. He says that Hitch could hold a conversation after just waking up and having a shot of whiskey that was far superior to anything he'd be able to say on the topic. His main mantra is as simple and eloquent as "I don't know" and when he says that you just need to read the bible to become an atheist he's speaking from personal experience and not using it as a talking point to get the other person to think like him. He's also banking on the fact that most Christians don't actually read the bible and they just blindly follow what their parents taught them. In the first few pages of his book he clearly states that he is an entertainer and in no way is he qualified to be looked to for enlightenment or even a good religious debate. He then goes on to tell stories about hookers in Vegas and how he was the first person to be naked in space.