Firstly, I do have to question your source. You are citing a BlueSky post from an account with eight followers in which only opinions citing notoriously biased sources are posted, and there are no displayed credentials of legitimately being a doctor, contrary to the poster's claim that he's "a real doctor who has treated many more thousands than Fauci." This makes the claim questionable at best, and demonstrably false and intentionally spreading misinformation at worst.
Let's start with the first claim- that the Coronavirus vaccine has killed more people that it has saved. According to the World Health Organization (WHO) in 2024, the COVID-19 vaccines have reduced deaths by "at least 57%, saving more than 1.4 million lives in the WHO European Region." (https://www.who.int/europe/news-room/16-01-2024-covid-19-vaccinations-have-saved-more-than-1.4-million-lives-in-the-who-european-region--a-new-study-finds) This was a study done in Europe alone, not taking into account any of the other continents worldwide. In another study conducted in Europe, it was concluded a total of 11,448 deaths may have been linked to these vaccines. If these numbers are true, then the vaccine saved approximately one-hundred and twenty-one times the number of people who it may have killed- This claim is false.
Secondly, the claim that masking and social distancing are ineffective- Masks have never been identified as a 100% effective preventative measure, and that to this day remains true. Another common claim that led to the belief that masks did not work was the assumption that masks were for the purpose of protecting themselves when, on the contrary, the purpose of masks was to prevent the spread of Coronavirus to other individuals, partnered with social distancing. Here is a study published by the National Library of Medicine demonstrating the effectiveness of masks in preventing the spread of airborne illnesses: https://pmc.ncbi.nlm.nih.gov/articles/PMC7883189/ With the fact that social distancing and masking does not have a 100% success rate, the claim that these things "can't/didn't" work is not in its entirety false, but is certainly exaggerated and misleading.