First and foremost, the declaration does not present the most important point right now, which is to say October 2020: By the middle of next year, and quite possibly sooner, the world will be in a much better position to combat Covid-19. The arrival of some mix of vaccines and therapeutics will improve the situation, so it makes sense to shift cases and infection risks into the future while being somewhat protective now. To allow large numbers of people today to die of Covid, in wealthy countries, is akin to charging the hill and taking casualties two days before the end of World War I.
Not only does the declaration fail to make that point, but if anything the rhetoric conveys a sense of “letting things take their course” — after the most vulnerable are segregated from society, of course. It strikes exactly the wrong tone and stresses exactly the wrong points.
The declaration also sets up a false dichotomy by comparing its policy proposals to lockdowns. The claim is this: “Current lockdown policies are producing devastating effects on short and long-term public health.” The health problems are very real, but in most of the U.S., the lockdowns are not severe. In my home state of Virginia, there are relatively few commercial activities I cannot partake in, were I so inclined. I even can go see a live bluegrass concert in a nightclub (I won’t, not yet).