You still don’t seem to understand the opportunity costs you’re overlooking here.
Reducing people’s freedom is justifiable to a certain extent, if it saves lives. But that’s a trade off. Currently, the death and illnesses due to covid are very rare, so overall the “sickness load” is rather low. Changing behavior in a way that reduces that load significantly will necessarily cause reduced freedom for huge amounts of people. You’re taking away more than you’re saving.
That’s what I meant by suicide for fear of death. Sacrificing very much to protect very little.