The only argument that is viable against vaccination is that one might already have natural immunity. I get that some will try to get infected on purpose, but those will be the minority of the minority. Maybe there is also the argument that higher vaccination rates will not help. I heard that 90% UK's population has antibodies. People say that Spain has low rates now b/c they have a high vaccination rate, but they also had a high number of cases previously, and they were probably underreported. Personally, I gladly increased the average antibodies count of the population by getting vaccinated despite already having some immunity, but people are frightened, and we can't really change their minds. Force will only make them more stubborn.