Corporations are supposed to be easy-come, easy-go; the fact that it's easy to start new businesses should mean that if there's genuine need for a business then it's easy for a replacement to start. I wouldn't be surprised if e.g. a lot of bankrupt restaurants start operating again with the same kitchen and most of the same staff, because there's no reason for whoever ends up owning the place to do anything different (unless there's a long-term shift in people's behaviour - in which case we don't want the restaurants to re-open). So I think the main thing is to make sure it really is easy for replacement businesses to open (i.e. avoid situations like new businesses requiring a difficult license, or zoning that grandfathers in existing businesses but wouldn't allow similar new businesses), and to avoid having communities dominated by a small number of big companies (which mainly means not having the kind of tax loopholes that give big businesses advantages over small ones). Ultimately the losses have to be borne somewhere, and it's better that they fall on business owners and equity investors (who knew the risks they were taking) than anywhere else, even if spreading them out among taxpayers makes it looks like no-one would notice.