The true purpose of post-modern literary and artistic criticism is to bring the world to a point where it is impossible to say the phrase "I like potatoes" without it being ironic, symbolic of the Irish Potato Famine, Sisyphus, Anglo-Frisian relations, the cold wa, modern technology, sexual feminist re-interpretive Randian values and the rise of teflon waffle irons; and finally to also be a reference to an amusing anecdote about Oscar Wilde, Bette Midler and/or Ron Paul.
See, literary critics are no better than Hollywood producers. They don't want you to read Harper Lee's To Kill A Mockingbird, they want you to read Granville Hicks Presents Harper Lee's To Kill A Mockingbird. They want to remove all of the author's presence from the novel and infuse it with their own self, just like a hermit crab emptying a shell and taking up residence.
Only, you know, different.