(Pasted from what was gonna be my response on another thread)
Covid has a fatality rate of between 0.6% and 1%. It is said that the herd immunity threshold (by which the virus starts to find it hard to spread to new hosts as more people are immune) is 60% for most viruses. 0.6% of 60% of 67 million is 241200. I'm guessing you wouldn't be ok with that many, which is a low estimate, dying in the space of a few months, with no guarantee that immunity would last? There is evidence that the herd immunity threshold for covid could be higher than 60% as there are studies showing 93% of people in some cities in Latin America with signs of antibodies.
For context there was 616 thousand deaths in the uk in 2018 which was regarded as higher than average, in 2011 it was 552 thousand, so you are talking about between 25% and 33% more deaths, at minimum, than what would die normally within a year just from one illness. Added to that the thousands of people ending up in hospital, people dying from other causes because the hospitals are full, the number of covid sufferers severely ill for months, thousands of people with mild cases but feeling too shit to come into work and so on.
What sort of effect on the economy would that sort of amount of sickness and death have do you reckon?