I think you do not understand
I do not advocate imprisoning healthy people
I advocate freeing all healthy people
Of all ages
Being 60+ is not a disease
We will not accept being the new lepers under benevolent jailers
But I see your point. When, "let them eat cake" just won't do, "let them die" works just fine.
Look how much has changed as we learned to treat this mess. Keeping the most at risk people away from the risk as much as possible by limiting their being with groups and having them wear masks at least until we know how to treat the sick rather than sticking them on a machine that speeds their death is a far, very far, cry from "imprisoning" people.
Have a lovely day