The Bible is a fairytale, but it is as good as many other fairytales.
The problem is that people don't take the Bible as a fairytale with a deeper meaning to give deep thoughts into, to understand its messages.
They try and debunk them.
Well, I could debunk H.C. Andersen's Ugly Duckling fairytale, simply by saying there is no evidence, whatsoever, for a talking duck.
End of story.
Now, that doesn't prove the morale of the story wrong, does it?