I don't think any of us have seen anything like this, either the virus or the response to it.
This is crazy. Looks like measures that would be taken in times of war (or even worse!)
I don't think so - it depends entirely on how your PTB determine to fight it. In Italy they don't really have much choice now and they are presumably trying to replicate what worked for the Chinese. However, here in Blighty, our lying two-faced Prime Minister has got it right, I think. We aren't closing anything much or banning anything much (and people are whining about that), but they are figuring we're all going to get it sooner or later so it's better to have some get it now and others later to flatten out the peak (which will hit in a month or two). That way our health services stand some chance of coping, whereas everyone getting it at once like they have elsewhere just overwhelms things. Further, a complete lock-down
before it ravages a country is only going to put off the moment of truth (unless you can hold it back for 18 months whilst they find a vaccination).
As to whether we need to react to it in these extreme ways, I think we do. The problem isn't the virus per se but the pneumonia which can result from it. If you get that you need an ICU bed, otherwise you die. Simples. We don't have enough beds so it's literally a matter of life and death that we either don't get it or get it over a long enough time that not too many need the care at once. Doesn't matter how many thousands or millions get it and carry on as normal, it's that small number that really do need critical care that this is all about.