That'll sell well in an election year with states and the federal government overextending themselves already due to a woefully inadequate initial response. We can't even get masks and ventilators manufactured at the necessary rate, and we're going to send force to assist Amazon Fulfillment? We're not even sending in force to assist first responders and medical practitioners.
Amazon workers have options during this, including just going home. That's Amazon's problem, not the country's. No one is entitled to cheap delivered ecommerce services. If Amazon can't make the economics work without coerced labor, good riddance.