If 80% of the population is vaccinated and 80% of the cases are vaccinated people, it implies that the vaccine does nothing to prevent infection.
A substantial drop in the number of cases would mean that the vaccines are working, even at that percentage. We don’t have that substantial drop in cases. I got lectured by a vaccine true believer last week to the effect that when 100% have been vaccinated, 100% of cases will be from the vaccinated because math. They will say anything in service of this hoax. Anything. The shots don’t work.
It looks like the vaccine gives you Covid and eventually you go to the hospital and maybe die. This seems like a long way to commit suicide.