You are both conflating mutation with evolution. Please stop.
That would be more correctly and clearly expressed as, "All viral replication produces genetic variation; the less replication, the less variation is available on which selection and drift can act.
If we correct @LyghtWayve’s question to, “Since viruses mutate and evolve, why hasn’t the polio virus EVOLVED so that the polio vaccine is no longer effective against it?”
I think that the answer becomes more clear.
No, that’s not accurate. SARS-CoV-2 (COVID is the disease, not the virus) is in the same family as only 3 of the viruses that cause common colds, but colds also are caused by >200 other viruses from other groups. That should answer your question.
Causing the common cold is basically an optimum evolutionary outcome for a virus. It changes the behavior of the host to increase its transmission (sneezing, coughing) while rarely killing its host. It seems likely that SARS-CoV-2 will evolve in that direction, but how long that would take is the big question.
Exactly. Unlike the vaccines we are getting for SARS-CoV-2, such vaccines may cause more deaths than they prevent.
I’m not sure. Dialysis is the only aspect of US medicine that is completely socialized. Some have described it as a racket.