No people have gone through their life without catching the cold and very few without catching the flu at least once, despite having flu vaccines for a few decades now.

Not all viruses are the same, and sarscov2 is much more like cold/flu than polio.

Specifically, saracov2 has reservoirs in animals. Unless you had an effective vaccine that also works for cats, dogs, deer etc and the ability to actually deploy it (think wild deer all over the US), it’s here to stay.