Do you know about ADE?
People with a vaccine that doesn’t stop infection may have a higher chance and time to help develop mutations in order for it to survive.
It was extremely dangerous to push an imperfect vaccine, and because we know the current ones do not stop infection, transmission, or lower the viral load, that might be what has happened. IDK, not an epidemiologist.
https://www.chop.edu/centers-programs/vaccine-education-cent...