While I agree that the term "fairy tales" may be somewhat harsh, I do have to concur that all religions are ultimately based upon fictions. Or at best upon wishful thinking.
By their own admissions, theologians tell us that we cannot know the true nature of God, but then tell us that they know what he expects from us. Unless you truly believe that these people (who include among them adulterers, pedophiles, drug users and murderers) really have intimate contact with God, you must conclude that they are only making things up as they go along.