Did the vaccine stop the transmission, when almost everyone contracted covid
anyway at this point. There's plenty of evidence that natural immunity is the superior immunity. Which would mean that the vaccinated were more likely to contract COVID multiple times, and thus more likely to spread over the last two years.
“Natural” immunity would have to be much much better than vaccine immunity to outweigh all the first cases prevented by the vaccine in terms of total amount of virus shed into the world. When studies find a difference between”natural” and vaccine immunity (if they find a difference) it’s very small - so i don’t think this idea holds up.