I mean you can get rid of testing/isolation and ask people who are positive but only mildly symptomatic to work. But that makes the virus spread faster through the population.
The thing is some people will just get a mild reaction to COVID, others get seriously ill, some get Long COVID (which is rarely mentioned). We don’t really know enough about this variant either. We also have a significant proportion of the population who are unvaccinated who are eight times more likely to get seriously ill and be in hospital.
That means that we are more likely to run out of hospital beds/ICU spots if we let people with COVID go to work. Put yourself in the place of a triage nurse with 12 patients showing up, you have 4 beds. How would you decide who gets care? Why would we risk getting ourselves in a situation like this? Italian health care had to do this in the first surge.
It is true, COVID patients are taking attention away from other health care, but do we want to make the situation worse in a virus surge like we have now, with more COVID patients taking up even more hospital beds and occupying doctors? It is only when the numbers of those COVID patients are at more manageable levels, that normal levels of service improve. Chris Whitty said much the same thing.
As to the economic argument, public health=economic health. As an example, so many teachers are sick right now, that the gov’t is trying to get retired teachers to be supply teachers. Why is this?. Some of it is surely face to face teaching. Teachers don’t work at home, so one after another, they are ill because there aren’t enough precautions in the classrooms. And now, there may not be enough teachers to continue schooling at proper levels. So if we get rid of the WFH restrictions, how many more professions will end up like the teachers?
Having people continue to work when asymptomatic or mildly symptomatic and spreading the virus around even more doesn’t sound like a great solution to me. It just spreads faster, causes more suffering, and threatens to overwhelm the NHS,. Isolating is a pain, no doubt, but as pandemics last on average 2-3 years, perhaps taking the long view is more prudent?