It sounds like the disagreement here is over the definition of literature. I generally regard wiktionary's fourth entry (high fiction) to be its definition, whereas this seems somewhere between that and the second (collected creative writing of a culture). I was shaking my head at most of the examples given. Now I see we are operating from two different foundations.
Maybe this is why so many arguments open with the cliche "Webster defines..."
Maybe this is why so many arguments open with the cliche "Webster defines..."