In China, the confirmed infection rate is something like 0.00008% of the population, from that there were 4% fatalities. In Italy, approximately 0.00005% of the population has been infected; in Spain, about 0.00002%. So, between 99.9991 and 99.99998% of any given population will not catch the virus, or anyway, will not experience symptoms significant enough to even notice if they do.
In the minuscule fraction of the population that does contract the virus, more than 95% of transmissions do not result in serious health problems or fatalities, and vulnerable groups are easily identifiable. Most countries, certainly European ones, will literally have the names and addresses of pensioners and people on disability – the most vulnerable people likely to have severe symptoms from Covid19. They could be mandatorily tested and / or quarantined and provided for, while the rest of society continues to function normally. The perhaps 0.2% of younger people from the 0.00002% who develop serious symptoms can be treated as needed.
When the lockdown measures being taken will have such devastating economic repercussions for millions of people, while being blatantly extreme as a practical response to #CoronaVIrus; unnecessarily extreme; you have to conclude that the policy is, in fact, intended to achieve those devastating economic repercussions.
The outcome is not going to be the end of the virus; that much is certain; so what then is the desired outcome, if not the predictable economic outcome?