This is fundamentally incorrect. Vaccinated people have a lower viral load, thus are less contagious, thus lower the R1. If the r1 is below 1, then you eventu

This is fundamentally incorrect. Vaccinated people have a lower viral load, thus are less contagious, thus lower the R1. If the r1 is below 1, then you eventually get to herd immunity. The more vaccinated people there are, the less dangerous the disease is, and the less contagious it becomes. Herd immunity is not binary: it's a gradient, and if you are on the right side, things get better.