I totally agree with your last paragraph. I wish someone here would appoint a blue ribbon panel of doctors, scientists, businessmen, state and local officials, etc. to begin crafting an exit strategy, but at this time I don’t think one exists.If you've been following the UK situation you'll have heard our health secretary say that 3.5M antigen test kits are on order and that widescale immunity testing will be in use in weeks with simple finger-prick home test + post the [whatever] that holds a blood trace to a lab.
That was last week and I had sincere doubts given what I heard elsewhere. Now it turns out that there is no reliable antigen test, so there is nothing yet to order. (An option to buy has been placed once a reliable system turns up, but that may well be later rather than sooner.) We keep being fed fairytales over here. Whether such a simple to use finger-prick home test is really feasible has also yet to be proven so this may be another over-simplistic 'jam tomorrow solution' to stop the children worrying.
There is a small but growing groundswell of opinion here outside of government that almost everybody is going to catch Covid-19 eventually (short of a vaccine appearing much, much earlier than anybody now believes) and that it's an 80/20 problem. Restrictions should be lifted completely once the present peak of hospital admissions is over on the 80% whose risk of serious illness or death arising from infection is very low. The 20% are all over-70s and those of any age with serious health conditions that make infection dangerous. In the view of some of this approach's supporters there would be enforced 100% isolation for members of this group (which includes me on age grounds) for as 'long as it takes' or until an effective vaccine arrives. I suspect that some form of this approach, not as drastic as complete isolation for the 20% though, will become the exit strategy in western countries.