Robin DiAngelo's "White Fragility" is a destructive book full of bad reasoning and bad advice. Don't fall for it. --- In other words, the theory is designed as a Kafka trap whereby any denial is interpreted as evidence of guilt. If you object to any insinuation that you are racist because you are white, or that what you have said has racist connotations, you are failing to come to terms with your racism and exhibiting white fragility. […] One reason “social justice” activists like DiAngelo easily fall into this trap is that they see “Whiteness” everywhere, and when you see “Whiteness” everywhere, it loses its meaning. (Foucault would call this a “totalizing discourse.”) We are left with the fallacy of ambiguity, which happens “when an unclear phrase with multiple definitions is used within the argument.” In this case, Whiteness is the unclear phrase used in the premise of every argument that says racial disparity is the result of Whiteness.

Not so much 'debunked', but this article calls out Krakauer on a number of conclusions and omissions from his book (and the subsequent movie). To summarize: the poison/moldy seeds theory doesn't hold water, and McCandless probably just simply starved to death. McCandless had money and a map with him on his final trek, but the book and movie omit this. Also, one of the final self-portrait photographs might have a clue as to the "injury" alluded to in his final note: one sleeve of his shirt looks armless.