That would be very fragile.
For thousands of years, Native Americans maintained comparatively low densities and longer distances between people. Large cities existed in the Mississippi basin, but that was the exception. From a "public health" perspective, this was great.
Then they encountered a population that had been living in denser conditions, both with other humans and with animals. These people had been a breeding ground for pathogens, a big gain-of-function experiment, for thousands of years. They even smelled bad.
The population with the good public health was ravaged by the worst plague the world has ever known, a plague that makes the Black Death look like the common cold, a plague that killed 90% of people in many places, that destroyed cities, that nearly emptied continents ("providentially", from the invaders' point of view).
To this day, it is a tragedy whenever an uncontacted tribe in the Amazon is met by an outsider, because within a month 90% of the tribe is dead of disease.
It is very good for a society to embrace vaccines. It is very bad for a society to sit out the next rounds of evolution, or of immune learning. You'll end up with Galapagos syndrome.
Consider the Indian symbol of the lotus. (It is the sign of the BJP.) It symbolizes "beauty growing from the muck". The "muck" is important. Drink the water.
A society that really wants to win, should have viral research facilities, well protected in their deepest deserts, where gain of function experiments speed evolution and produce ever more dangerous threats. At the same time, they should develop vaccines for these viruses, and include them in peoples' regular shots. If it wants to go on the offense, all this society has to do is release its pathogens. It will be protected; its enemies will not.
Lockdowns can be accepted as one-off responses that preserve population while a vaccine is developed. Since you end up with the same (or even better) immunity but less death, it's a win. So just be patient; we're almost there.
But as a long term solution, a society that embraces lockdowns over immune learning is going down the wrong path.