There was an interesting scene in the movie where a small town was getting a new walmart, and they drove around downtown.
They pointed at each of the stores and assigned values like "6 months" or "3 months" as an estimate of survival after they lost all their business to walmart.
Another wave of change has been moving in slow motion for years with online purchases and local stores, but the pandemic has been a tsunami in comparison.
[1] https://en.wikipedia.org/wiki/Wal-Mart:_The_High_Cost_of_Low...