So says the European Journal of Epidemiology, publishing the work of S. V. Subramanian and Akhil Kumar. It is quite a short paper, but the graph in it says everything that needs to be said:
Since we now know that vaccination does not stop the spread of Covid-19, the most that can be said for it is that it reduces the severity of the disease among the vaccinated. So it does not bring a public benefit, it brings a private benefit.
So why make it mandatory?