I think 6 months of lock downs or stay at home would show a lot of companies are not prepared to not have income. Businesses going out of business aren't coming back, along with the jobs they provided.
Sure. But if there was a need for the goods and services those companies provided before, then there will be a need for those goods and services again. I don't think enduring financial collapse logically follows from even an extended quarantine.
I don't think that is necessarily true. Something like gamestop won't come back, individuals who put everything into a small business might not recover and try again. A lot is happening at one time.
