One star reviews damning our book should stay, lowering the overall book review? How is that not blaming the victim? We're not the counterfeiters.
I never indicated that anyone should be "blamed" here. People purchased something, then reviewed that purchase after it was completed. They are not just reviewing the book, the book's contents, or your work in publishing it. They are reviewing the entire purchase, which includes the transaction where they bought something, and got something.
They are reviews of the purchase, which includes both the product, the mechanism of purchase, and everything else involved in the purchase.