Never said anything about becoming more dangerous. However, there have been several instances of antigenic shift where viruses have evolved into more lethal strains. Ebola, the West Nile virus and the Spanish flu from the 1918 pandemic are all examples of viruses that have become more lethal to their hosts after mutating.

Vaccines ending disease are fact - no urban legend there. Vaccines do end pandemics and stop diseases from spreading - smallpox, measles polio, mumps, rubella, diphtheria...

Uninformed anti-vaxxer dogmatic thinking and misinformation are not only dangerous it is what is prolonging this pandemic.

What would change your mind?