Pet peeve - non-fiction vs. informational text

Another reason why we need librarians...

What does "no-ficción" mean? It means "no fiction".

If something is nothing, then how can it be something?

Non-fiction is just something that is NOT fiction.

So...what is fiction? Merriam Webster's Definition Fiction 1a : something invented by the imagination or feigned specifically : an invented story … I'd found out that the story of the ailing son was pure fiction. — Andrew A. Rooney b : fictitious literature (such as novels or short stories) was renowned as a writer of fiction c : a work of fiction especially : NOVEL Her latest work is a fiction set during the Civil War. 2a : an assumption of a possibility as a fact irrespective of the question of its truth a legal fiction b : a useful illusion or pretense it was only a fiction of independence his mother gave him; he was almost totally under her power — G. A. Wagner 3 : the action of feigning or of creating with the imagination She engaged in fiction to escape painful realities.

Merriam Webster says non-fiction is informational text, but is it, always?

Nonfiction is Just Everything Else

Everything else would be in a non-fiction section in a library, so I argue that non-fiction is NOT a genre. Non-fiction just includes "everything else" that is not "fiction".

A non-fiction section in the library includes: -folk-tales and fairy tales -poetry -story-collections -jokes and humor -informational/topical texts (biography, sciences, sports, technology, curiosities, records, famous firsts, etc.)

What are your thoughts?