Not sure he has been taken fairly though; remember the Lancet paper, which was a total disgrace and is so telling about this whole story.
This is a serious, but, as far as I can tell, unsubstantiated accusation. Moreover, even if it turns out that HCQ does not work, the simple fact of offering treatment to patients, of taking care of them, is likely to help them cope better with the disease by reducing their stress, by giving them peace of mind. And this simple point is crucial in a disease like covid19 where we know that stress is one of the first factors of comorbidity.