@Pumpertrumper
‘Would you rather thousands of children (the least impacted) and young families be forced into poverty and hunger because the economy has collapsed just so that you can save your 92 year old gran?’
‘Would you rather thousands of people suffering awful illnesses like cancer die due to lack of adequate treatment, so you can save your 1 vulnerable family member?’
So let's flip this round again. It isn't just 92 year old grans who are vulnerable. There are, depending on how you cut it, between 2 and 15 million vulnerable. I in 10 of the shielding are said to have school age kids (like me). (I've seen this quoted but myself am still looking for more data).
We think that at the peak there were approximately 1-2 million people infected. We have had , again depending on how you count the figures, about .5% deaths of people infected.
It seems that immunity is unlikely to last many months ( we don't really know).
So, if many millions of us were allowed to become infected, say half the population, we would be looking at potentially dozens thousands of deaths this winter (.5% would make for 175,000 deaths) not just of the very elderly, but of people with different vulnerabilities, all through society.
Worse still, first of all, if the health service gets overwhelmed and the 20% who need hospital admission can't be treated, mortality rates go up. Could be to 3-4% of the number infected.
Also, if you get flu and covid together, that could double your mortality.
Now, even if you don't really mind all these people dying very much, it will create a lot of chaos in the health services, So it would be hard for other people to get their treatment for cancer anyway. Also, you don't want the cancer patients to get covid, because they are likely to be vulnerable because of the cancer. That creates some practical problems for how you use health units. Many people were apprehensive about going to hospitals over the summer, because they feared infection.
And all the symptomatically ill people won't be working, so we will be missing quite a lot of teachers and doctors and nurses and so on.
And there will be lots of problems with practical issues like burying all the bodies.
The airports still wouldn't be able to function, because people wouldn't want to come here on work and holiday. Hard to see how restaurants and other businesses would keep going, if many of their staff and customers were ill or worse, and many others feared getting infected.
So "just getting" covid would be really bad for business and so on.
There is therefore a very good business argument for keeping case numbers as low as possible.