Instruct: Classify the given Amazon review as either positive or negative.
Query: Insipid narrative, short of proof or reference

I had opened myself up to some revolutionary thinking when I started reading this book, but was sorely disappointed.Although some of their points do make sense, there is lack of any substantial proof to substantiate the authors' hypothesis. Some of their views are downright outrageous, when they preach that the public systems of the United States (which as per them, is currently tailormade for the less intelligent) should become such that the genetically inferior should be naturally reduced, if not eliminated.