While I agree with you to a certain extent, it's interesting who counts as "sickly" in this context. The underlying issues most associated with negative outcomes for covid-19 are hypertension, obesity, diabetes, heart disease, and lung issues. Given the prevalence of those issues in our population- we are, after all, a nation of fat, sick, nearly dead people waddling around nursing chronic conditions, it's fair to wonder just how many people would face the worst of this virus if we didn't practice social distancing, etc. I fully understand the economic consequences and realize there are no easy answers here.