Please cite your sources here. Lockdowns were effective.
1) Lacking a nationalized infrastructure to deliver food, utilities, and healthcare, some businesses are clearly essential
2) It is impossible to have unanimous consensus on what "essential" means
3) In some areas, businesses are not tightly scoped - the primary source of food for a neighborhood may also sell non-food items.
4) Even the definition of "essential" cannot be tightly defined - are manufacturers of spare infrastructure components essential? What about their suppliers? What about the contractor who refills their coffee machine?
Decisions had to be made, and administrators largely made the best decisions with the information available to them.