well, exactly. But once people have a narrative between their teeth, they have a hard time letting go.
I know. Their attachment is psychological and provides a sense of community that is lacking in too many people's lives. Plus, admitting that one has been scammed always hurts one's pride, since no one likes to admit they have been fooled.
But, studies show that an authoritative expert who discusses the science of vaccines can help people who have been influenced by antivax propaganda overcome their fear of vaccines. So, I keep plugging away.