Again, I'm curious as to what you consider a trustworthy source of statistics. But that aside, I think this post of yours shows an error in your analysis.
The accurate way to compare vaccine efficacy is to take 100 vaccinated people and compare them to 100 unvaccinated people. Then compare how many from each group are getting seriously sick and/or dying. Saying that 66 of 100 hospitalized are vaccinated means nothing without knowing relative group sizes.