This seems like a very strange take. This is a utilitarian perspective, but with a floor of 20 million years of utility before we take any action. Why shouldn't we take action if the mortality reduction years > lockdown externalities? You're essentially saying "we should take no action to prevent a disease from costing us 20 million wellbeing-years", which seems odd.
> BTW I think once accounting for vector exhaustion (not everyone has the same risk of infection) and what I feel is a more realistic IFR, we'd be closer to 600,000 deaths in the "realistic" scenario IMO.
Are you accounting for the other side effects of Covid? Life long lung capacity loss due to pneumonia side effects, weird not well understood side effects like strokes in young people etc? Most of the people I see minimizing the risk and saying we should reopen seem to entirely ignore those dangers.
> Given that we must practice indefinite containment until we develop the "game-changer", we are executing a strategy which is based off a temporally unbounded future event. Therefore the potential drawbacks are unbounded given that the strategy involves waiting for a miraculous leap forward in COVID-19 vaccination or treatment.
This isn't at all true. Look at China, Taiwan, and South Korea, which have all begun reopening, but with infrastructure in place to track and keep outbreaks contained even as they reopen. Some parts of the US are on track to do the same relatively soon (weeks, not months or years).
> My proposal is an approach where we try to direct testing resources and governmental assistance to protecting the most at-risk members of society.
You realize that this is what's being done now, essentially, its just that tests are so severely limited that that isn't useful. We can't, for example, consistently test employees at nursing homes to make sure that they aren't infectious. Until we can do that, returning to normal is asking nursing home employees to shelter even more tightly than individuals are now, or it's sacrificing lives.
It feels like you haven't looked deeply into the criteria that many metro areas (NYC, WA, and the Bay to name a few) have to reopen. They're specific and clear, and backed by reasonable thought.