Cost/benefit to whom? The disease according to all stats around the world primarily will kill those over 75 who are already ill and frail, under that age, which for most of the world is the AVERAGE life expectancy, the chance of death is near zero.

Avg death age in US from covid is 80. thats HIGHER than the life expectancy. I am not saying who cares about seniors, but, somehow we lost the thread that old people die, and that this happens and is normal.

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and that we shouldnt blow up the entire planet and inject everyone with experimental drugs just to save 10,000 over 80's