Shero, I have watched the anti-vaxxers shrink down to a tiny minority on this forum. Back around March, 2021, there were a lot more opinions about there really being no such thing as a horrible disease killing thousands of people (which turned into millions). All the numbers published by the government were lies designed to fool the people. The "big pharma" companies (boo, hiss) were only interested in profits and were pushing their useless snake oil to get even richer. And the masks didn't work, and when the vaccine finally came along, that didn't work either. Every setback was greeted with glee, apparently.
It still goes on, but the number of people following the demagogues, opportunists, medical quacks and just plain nut cases seem to be shrinking, both on this forum and out there in the world. Partly this is because many of them have died of Covid, but I have a feeling that many of them have just quietly accepted the obvious truth.
And you're right, those who are pathologically scared of this vaccine will just be stuck living in their homes for the rest of their lives. Maybe a new psychiatric specialty will pop up, to treat vaccine phobia.