@Starcup
*I think you are making a mistake to think that the virus spreading freely won't harm the lives of the majority. That's what it comes down to.*
@eeeyoresmiles
It won’t harm the lives of the majority.
That's only true if you only include individual medical harm from the illness itself. It's not true if you include the harm caused by lots of people being ill at once. I think you're underestimating that harm.
The effects on society of this illness spreading fast and uncontrolled are not a million miles from the effects of lockdown. With both, you've got the NHS unable to carry out all the non-covid care they need to. Businesses and the economy can't function normally. Education is disrupted. Tourism and hospitality are screwed (as is a lot of foreign travel). It isn't something we wouldn't notice - hospitals would have wards filling up again with people (many vital people in the workforce), more businesses would close due to sickness, schools would have to send people home due to lack of staff.
If you could guarantee we'd all get the illness neatly one by one and not all at once, then you could judge what to do based only on the effects on most individuals. But the effects of lots of people being ill at once are far greater than that, for the whole of society. That's the thing constraining what we can do now, far more than the effects of the disease on vulnerable people or those actually likely to die.
Even covid itself will be worse for people if many people are ill at once because it has a high hospitalisation rate - if hospital care isn't there because too many people are ill at once, then the death rate will go up.
Even if we knew there would never be a vaccine, we'd still have to allow the disease to spread slowly rather than quickly, as letting it spread quickly gives all the problems of lots of people being ill at once.
In effect that's what we're doing by trying to get back to some kind of normal with social distancing, hygiene, testing and tracking. Lockdown cause a big slow down in cases and now we're switching to other methods (including limiting mixing in schools and trying to make it safer) to keep cases low and stop them going up again.
If we abandon all those measures and let the disease spread fast, based on the idea that most people aren't medically in danger of death from the disease, the majority will still be harmed - not all from the disease itself, but in all sorts of other ways.