They've capped out at under 100k cases (at least for the first wave) with 3k deaths: https://en.wikipedia.org/wiki/File:2020_coronavirus_patients...
Imagine if china had gone for the herd immunity strategy instead. With a population of 1.4billion and letting everyone get infected you are looking at 42 million deaths.
If draconian measures is what it takes, that is what the world should do.