Economy before lives. You guys must be Americans.
As long as it doesn't happen to you, you don't care.
More than 80% of the people infected have not fully recovered after 3 months! (they still show symptoms like shortness of breath, fatigue, muscle pain) according to a recent study.
It is a new virus, there are still a lot of unknowns.
You want to get sick to develop "immunity"? There's no evidence you will be immuned forever. Most patients fully recovered don't have antibodies after 1 month.
What if the virus mutates?
The governments obviously took the right decision to lockdown, at the time, in order not to overfill the medical services.
The death rate was kept low BECAUSE the hospitals were running at or under full capacity.
The mortality displacement so far is 23% in the USA and 50% in the UK!
That's probably the real toll on lives. Not the official numbers issued by the governements.