It's not about the shielding group, can't you see that?
Have you seen the size and scope of the vulnerable group? That's you're biggest concern. What do you think those people do all day, normally? They're the bus drivers, doctors, telephone engineers, shop assistants, nurses, utility workers, power station workers, teachers, cleaners, police officers - yet you're advocating letting loose a virus that at best will take them out of action for a couple of weeks at worst will kill a fair number. And youre answer is "let business worry about that".
My answer to 'let business worry about it' was your comment about absences as you well know.
The death rate of covid19 is somewhere between .5% and 1% according to the BBC. There is a lot of evidence (which I'm sure you will never look at) suggesting the overall death rate is much, much lower. It does not take a rocket scientist to work out that if we were to shield the 2% most vulnerable population, the death rate is going to be much, much lower still.
As for me posting in 'bad faith', don't be so melodramatic.