1) most Americans can’t afford an unexpected $400 expense. This multi-month lockdown will be much more than that. I doubt landlords will simply forgive rent, so any Americans will owe several months of rent without any revenue. That will mean several months of no disposable income to go spend at a bar or a restaurant. That means small businesses like those will suffer longer than essential staples like grocery stores.
2) Travel And tourism are dead and will be dead until a vaccine is available. Are you going to risk getting sick in a foreign country, especially when travel insurance likely won’t cover pandemics anymore? Tourism is definitely a large source of revenue for bars and restaurants will be a huge impairment on revenues as well.
3) People aren’t necessarily going to come back to the same jobs post-coronavirus. They might flock to jobs that pay better or have better health benefits. There might be a significant delay in getting staff up and running or they may need to pay higher wages.
4) more to point 1, many people have multiple part time jobs to afford to live. Losing even one of those jobs will affect them deeply. If they can’t replace their income or get those same number of jobs post-coronavirus, their spending will also be curtailed.
All of these contribute to lower revenues for business owners once the economy “starts back up”. I don’t think it will be a fast recovery. A lot of people will be financially hurt for a while. Owners will need some very thick skin and deep pockets to wait out for revenues to come back. Some may see impaired revenues for months longer, which probably isn’t enough to keep the business afloat.