> His tendency to reduce the inexplicable to what he's confident he understands

Coming up with theories to explain the inexplicable is literally science.

Also, suggesting that Dennet's philosophy stems from a "challenging childhood" is argument ad hominem, because it focuses on the person, rather than on the content of the philosophy.

To continue the discussion in the same tone that you began it, perhaps you don't see eye to eye with him because he challenges your beliefs.