I would argue that high paying jobs are a big driver of cities and never in human history have people had the ability to work in high paying jobs outside of big cities like we do now. The ability to effectively work remotely is largely dependent on job duties and IT in general can work remotely with little productivity loss. Hence the bay area getting hit harder than most.
To me the question is whether companies/employees will continue letting/wanting to work remotely in the future. I am certainly not concerned about a population collapse in big cities because many companies and people want to live there and don't because of cost.
i cannot upvote this enough. The regulation has very little if anything to do with the closure of the vast majority of small businesses. Access to larger/more efficient companies that provide better service to cost has killed the demand for the services that small businesses provide.
To me the question is whether companies/employees will continue letting/wanting to work remotely in the future. I am certainly not concerned about a population collapse in big cities because many companies and people want to live there and don't because of cost.