It always made more sense to me to vaccinate the highest risk group, and let the general population acquire natural immunity. In this way should a break out oc

It always made more sense to me to vaccinate the highest risk group, and let the general population acquire natural immunity. In this way should a break out occur in the vaccinated, those with natural immunity would buffer it from spreading quickly. Natural immunity is longer lasting and more robust at offering protection from the infection. I worry right now with a scenario where all the vaccinated start getting a breakthrough variant that targets the vaccinated and all get sick at the same time. Really overwhelming the hospitals, in countries with high vaccination rates and no sub population with natural immunity to buffer the spread. Imagine two forests. 1) a forest where all of the trees were sprayed with water. 2) a forest where the most at risk trees were sprayed with water. And a control burn allowed in the rest. The first forest will appear safer at first, but short term while the trees are still wet. But the second forest will be much more protected from future fires, since there will be large patches of burnt forest that will not readily catch fire for a long time. Buffering spread.