The question is — is it significant enough for:

a) eradication to be a possibility (intuitively, it would seem not); or, failing that

b) to lower the possibility of novel mutations emerging to a negligible level (I don’t have the knowledge to answer, so this is a genuine question, but again intuition would suggest not)

if, say, 99% of the population is vaccinated.

Wouldn't any kind of reduction be a good thing? Even if it just prevents severe illness / hospitalization by the stated amount I'd consider it a win.

Good thing, yes, but the parent argued omicron “happened because there isn’t enough vaccines in third world countries.”

I’m asking if that makes sense given the evidence, and commenting that my (lay) intuition says it isn’t.