And since the omicron variant rose from nowhere to dominating the world in a matter of weeks, doesn't a "let it rip" strategy, which gives the virus hundreds of millions more opportunities to mutate inside infected people, run the risk of creating a variant that is even more infectious than omicron but also more severe?
Returning to one of the questions that started this thread, I'd say that the mainstream narrative about variants is currently a broken mess and they havent formulated a new version of this yet.
If we look at the second half of 2021 in the UK, the gradual return to normal agenda was promoted via the likes of Prof Paul Hunter repeatedly going on about 'endemic equilibrium' in the press. He had to tweak this a few times to match the realities of the Delta wave here, but it remained largely intact until Omicron arrived. Now we are likely to continue to be treated to a modified version of his thoughts, dwelling on the milder nature of the current variant, the lower burden on intensive care etc.
Mainstream views about variants have not done well in the pandemic so far:
First we were told that this virus only mutates slowly, which is something I initially bought into, but then the number of variants with consequences we've actually had rather pissed on that early reassurance.
Then on the scientific research front we've now seen what happens when on paper there is a variant with the ability to dominate that has plenty of immune escape. Limitations of this stuff on paper compared to the resulting severe disease burden in practice is looking likely to be demonstrated by our Omicron wave experience. This creates some awkeard questions for the future in regards how seriously new variants should be taken by nations with a lot of prior infections and high vaccination rates.
I suppose another theme that could end up part of the next mainstream narrative about variants will be whether the virus is starting to run out of tricks, having used up a lot of the known immune-escape mutations already.
I'd guess the UK approach will be to press on with a further return to the old normal in 2022, but still including the caveat that the changes arent 100% guaranteed to be irreversible because of the unknowns about future variants, so much the same story as we had during the summer easing & Delta.
It would certainly be nice if the world could experience a longer period where no new strain emerged and came to dominate for quite some time. If we could go at least 9 months without such a thing happening then that would be a start!
Other complications to the narrative include some double-think that is necessary in order to support really simplistic messages from the likes of the WHO about getting a certain proportion of the world vaccinated in order to bring about the end of the acute phase of the pandemic. Because you are correct to detect a problem with this logic, given that current vaccines are not pushing number of infections down to very low levels, leaving opportunities for mutation heavily intact. And populations with immunity are the very thing that gives mutants that have immune escape potential their selection advantage.