The problem with your claim is the apparent assumption that if we would just open our economy once more, that our economy would function just fine.
Look at the meatpacking plants, like the Tyson Foods plant that had to close because 200 workers were infected and two had died…and quite a few meatpacking plants across the nation have had to close since then for the same reason. THAT, sir, is what happens if we reopen the economy — it will tank ANYWAY due to rampant infection among workers and customers.
The economy’s going to tank with or without a lockdown. At least with a lockdown, more people live.