I think what you are trying to say is that we should be allowed to mingle and form our immunity to the virus. Thereby, promoting natural selection as proposed by Darwin, right?
If so I agree with you, it is only that to sacrifice thousands of lives for natural selection seems like a suicidal mission. And we have grown so attached to each other that we cannot allow that to happen.
Natural selection may work well with animals, but humans, are of higher intelligence, and we should find ways to resolve this without having to lose two many lives