The more likely scenario at this time is that a lot of vulnerable people will get the illness, many will have the complications that will overwhelm the medical systems, and many will die. If we continue to quarantine our potential heroes, the situation will be far worse with rapidly declining medical capacity or even a rapidly declining carrying capacity for the entire population.
It is inevitable that there will be a point where we must abandon the hope of containing the spread through quarantines. Our best hope of minimizing the number of deaths and of those needing intensive care is to isolate the ones most at risk if they were infected. Instead of removing from the economy those who are suspected as being infectious, we instead remove those who have known preexisting conditions or age.