It ushered in work from home.
That is causing a crisis and soon a collapse in commercial real estate.
That will also cause a collapse in the most expensive Blue cities - San Francisco and NYC. Others will follow.
The sequence is the other way. The Democrats conspired with RINOs to steal the election of 2020 to force productive red states to bail out failed blue states that have no way of ever returning to solvency.
The decline has been since the 1940s. You can look up the census numbers in particular for all these blue cities that were already in decline prior to WW2 but got an infusion of funding for WW2 only to go into accelerated decline afterwards.