DY: I think they are wrong, but rodfim?
There might be several arguments why they are not currently rodfim:
1) If they take serious precaution measures, equivalent in effect to vaccination, they are not.
2) I believe there is no determination yet that vaccine sufficiently reduced transmission, although there are preliminary estimates. so, this would be sofek rodfim.
3) while there is a shortage of vaccines, someone else could use it.
Note that none of these justifications apply to those who are not taking precautions.