Because it's not possible to 'tolerate' them - left unchecked it would overwhelm our health service, destroy the economy, and cripple society. Your proposal is

Because it's not possible to 'tolerate' them - left unchecked it would overwhelm our health service, destroy the economy, and cripple society. Your proposal is a fantasy; it sounds as if you're wishing this was similar in effect and scope to the flu (and I'm sure we all wish that) but clearly that seems not to be the case