Being a medical researcher myself, this conflicts with what I have heard from colleagues who are ICU physicians (i.e. critical care pulmonologists) and physician researchers. Since anecdotal evidence is relatively poor, even though the individuals are certainly qualified/credible. I thus decided to look for research results on this topic.
As far as vaccinations go I am happy to share that the only evidence I found shows completely the opposite value of vaccinations from your assertion. References follow below:
https://www.doh.wa.gov/Portals/1/Do...-tables/421-010-CasesInNotFullyVaccinated.pdf
https://www.healthsystemtracker.org...alized-with-covid-19-breakthrough-infections/
https://www.cdc.gov/mmwr/volumes/70/wr/mm7037e1.htm
https://academic.oup.com/cid/advance-article/doi/10.1093/cid/ciab932/6415962
The best place to look for medical peer reviewed research is PubMed but Google Scholar works fine too or visit your local medical library to find other good options for searching. Here is a simple search I did on PubMed that came up with some relevant research.
https://pubmed.ncbi.nlm.nih.gov/?term=COVID-19+breakthrough+hospitalizations
If you have references that contradict this evidence, of the positive value of the covid-19 vaccinations, please share.
As far as "drugs" go, it is hard to comment because I don't know which drugs you are referring to. I can look up the research on them and share if you would like just let me know which drugs you are concerned about. Off the cuff I am aware of research that shows one of major monoclonal antibodies is not effective against the omicron variant (even though it was effective against delta and other varients) but there is at least one other monoclonal that does remain effective. Again let me know your questions on the drugs and I will be happy to find more information. If you have questions about how the vaccinations work on the molecular level with our immune system I can find those answers too.
I hope this helps.