Have you read Proctor’s book? I can’t see how you can consider answering the question with reference to Lemieux’s review of the book, and Proctor’s response, without making reference to the book itself!
My instant knee-jerk-but-educated (History and Philosophy of Science degree) reaction from five minutes of looking at the texts cited, is that Lemieux is looking for reasons to say that public health implies fascism, and is being quite disingenuous in his blatent misconstruction of Proctor’s case study.
But if your bolded and burgungied OP question is indeed assigned by a college professor - as Kamandi and I both suspect - I don’t think the professor will be interested in knee-jerk reactions or ill considered positions. Read the book! It won’t take you long. Think carefully about the discipline of History of Science. This will require some background reading, either from your own notes or from the library.