That might work, but how much food does everyone get? Do fat people get more or less? Who gets the steak and who gets the rice? Besides people need water long b

That might work, but how much food does everyone get? Do fat people get more or less? Who gets the steak and who gets the rice? Besides people need water long before food, an who gets to make these decisions? After we are all locked up who holds the keys? Would you have a problem with me holding the keys? How can we ensure once the virus is gone everyone is released? I can think of a few groups that might need to stay locked up a bit longer...drug addicts, terrorists, orange tinted politicians etc. I know you were just making an abstract point and agree that if it were possible it would work but unfortunately people are not livestock. If you are a religious person consider the fact that even god can't or wont take away the free will of men, wiping everyone out with a flood or plague seems more doable.