[Updated]

Tucked in the last paragraph of an otherwise banal review of Jonathen Foer's Eating Animals we find this gem

He uses the word “atrocities” to describe the cruelties visited upon baby turkeys and chickens and writes that KFC “is arguably the company that has increased the sum total of suffering in the world more than any other in history.” He asserts that “we have let the factory farm replace farming for the same reasons our cultures have relegated minorities to being second-class members of society and kept women under the power of men.” And in another section he talks about “the shame” he felt as an American tourist in Europe when “photos of Abu Ghraib proliferated” and then speaks in the very next sentence about the “shame in being human: the shame of knowing that 20 of the roughly 35 classified species of sea horse worldwide are threatened with extinction because they are killed ‘unintentionally’ in seafood production.”

Anticipating reader objections, Mr. Foer writes that people might say “social-justice movements” have “nothing to do with the situation of the factory farm,” that “human oppression is not animal abuse.” But he adds that in his view we interpret the legacies of the Rev. Dr. Martin Luther King Jr. and Cesar Chavez “too narrowly if we assume in advance that they cannot speak against the oppression of the factory farm.”

It’s arguments like this that undermine the many more valid observations in this book, and make readers wonder how the author can expend so much energy and caring on the fate of pigs and chickens, when, say, malaria kills nearly a million people a year (most of them children), and conflict and disease in Congo since the mid-1990s have left an estimated five million dead and hundreds of thousands of women and girls raped and have driven more than a million people from their homes.

As it stands this isn't an argument,  and so isn't fallacious. But, it seems to me that this move is deployed as a sort of defensive argument to shift the burden of moral justification. It questions the author's moral authority, rather than his argument, with a quasi ad hominem circumstantial fallacy wapped in a slice of accusation of hypocrisy. Although it doesn't assert that Foer's conclusion that we should end the massive vicious violence of our current systems of meat "production" is false, it certainly suggests that Foer is, at least, suspect for wanting to make such an assertion. It's about as cheap an argument as you can squeeze into a book review.

Of course, if we allow this move in this discourse, then it seems to me that it can be used about caring about anything–I certainly wonder how this author "can expend so much energy and caring on reading books, when, say, malaria kills nearly a million people a year."

Insofar as it is an argument, it seems to rest on some sort of premise such as that "animal suffering can matter only if human suffering is abolished." This seems likely false to me and seems to miss Foer's point which seems relatively benign–that we should not assume that social justice discourse does not have anything to say about how we treat animals, or that there are similarities between how we degrade human beings and how we treat animals.