A restaurant in say New York has to be packed to be profitable. you really have no time for any additional protection measures either. that mean it has nothing

A restaurant in say New York has to be packed to be profitable. you really have no time for any additional protection measures either. that mean it has nothing to do with a lock-down at this point - even if everything were to open up you have to convince people to go and get infected at the restaurants. If even half of the customers take the virus situation serious then they will stay away - and guess what half the restaurants will close.