If more people took that approach it might have helped early on but eventually it was going to come down to a couple different end games.

1. We eradicate COVID-19 (sars-cov_2). The fact that there are many different coronaviruses out there would indicate this isn't likely to work. The willingness of this thing to mutate would also seem to be a big speedbump in this road. It's not smallpox.

2. We beat it back so it's uncommon in this country, like polio or mumps. We'd measure outbreaks in the hundreds and it makes the occasional news report instead of being among the leading causes of death. This MIGHT have been possible with an earlier response that was more restrictive and heavier vaccine use. However, other nations did this and still didn't manage to beat it back before it moved into the 3rd option. China is still trying for zero COVID-19.

3. Endemic. COVID-19 is here for the long haul. It's in the population. Mothers are going to pass their immunity onto new children. Survivors built antibodies. Vaccinated people built antibodies. Less deadly variants managed to sneak under the radar. We'll be stuck with this long term and probably forever. Coronaviruses are adaptable little jerks. Some just cause cold symptoms. Others cause SARS. Like it or not, we are here.