Do you have substantive documentation to back this assertion up?
How do you prove a negative?
Are you telling me, that you think Bennett is a writer? All that proves, is that you know nothing of the man.
Since it's been known for years that the man sells as his own works that others wrote for him, IT IS UP YOU to provide "substantive documentation" that anything with his byline on it, was physically written by him.
You have no idea how hard it is to write a good book, do you?