Yep. Here it is. From Singer himself, in response to the Jewcy vegetarian dialogue. Truly, all things are possible, if only you pester, flatter, beg, and resort to myriad other methods of persuasion, inducement, coercion. Here's his take. — Joey [Also, read Peter Singer's recent Jewcy article, here.]
Where does Charles Eisenstein get this "vegetarians must kill" stuff, as if all vegetarians have the same reason for being vegetarian, and it's about killing? He's obviously deeply out of touch with the modern animal rights movement, which is at least as concerned about suffering as killing. I wrote Animal Liberation without ever appealing to arguments against killing—in fact I specifically set them aside, saying that they were more complicated, and not required for the case I was making against the way we treat animals. And yes, that book does have a chapter arguing that we should be vegetarians.