The National Institute of Health (NIH - whom Fauci was a member at the time - perhaps still is) wrote a paper on how highly effective HCQ was on SARS back in 2005.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1232869/
You do realize that papers printed in PubMed are often pre-prints and have not necessarily gone under peer review and the PubMed is an open source meaning pretty much anyone can publish their papers there.
I still do believe that HCQ as well as ivermectin along with zinc etc. is still as effective as it ever was and continues to be. In the mean and between time some people were paid off to change their minds aside from that there also appears to be a more sinister side to the whole thing, even so I don’t subscribe to conspiracy theories, I come to believe more and more that the other idea behind the vaccine is population control, it may not work suddenly but over time. A couple of interesting articles I came across served to confirm my suspicion. They are DAEGLE FORECAST PART 1 & DAEGLE PREDICTIONS PART 2. They are long but worth reading. I am quite sure if you Google for them you will be able to bring them up.