It's socially irresponsible and the impact to others is possible death. I wouldn't have a problem if these people weren't spreading death to others, but instead, they choose to force themselves on the rest of us because "freedom". The same people that don't understand vaccines are also likely to think masks don't work, so they take zero precautions when it comes to their safety and others.
The focus is just, these folks are robbing everyone else of their freedom and happiness.