I have covered this topic a number of times at the blog, and the question of viral evolution was one of my arguments given against the reliance upon the Covid vaxxes back at the time of the rollout. My argument was that with the corona viruses, vaccines will be of limited use given the rapid mutation of the virus itself. And, that was proven true by the way variant after variant was found. As well, the Covid vaxxes proved to be of limited effectiveness, with people getting vaxxed, and still getting the disease. What has been proposed is the mass vaccination regime has put evolutionary pressure upon the Covid-19 virus to mutate, and as the vaccines are “leaky” and do not prevent transmission, the virus has spread and will continue to spread. Petrol has been put on a small fire, to make it into a bushfire. If societies were not at the mercy of Big Pharma, the Covid issue could have ben dealt with like any other flu, and herd immunity would have happened long ago.
https://petermcculloughmd.substack.com/p/vaccines-alone-cannot-slow-the-evolution