Seems to me that nationwide we can get better cash flow in the C class type sectors and if B + is a goal there’s the trade off of less cash flow but better potential appreciation. 

What will remain are lower-paying service sector jobs.

Smaller cities tend to be dependent on a single company or market sector.

Perhaps what @Daisja Vance mentioned is at different level.I know lot of conglomeration outside of USA and the way they do business is super crazy, in one cycle they could become millionaire, the next cycle they lost everything and in the next cycle they become billionaires again.The way they do business is usually by making a 150% LTV loan, by buying a business, it could be oil wells, coal mining, or a forest ; depending on the sector, some sectors is going to a mega bullish year in 10 year period, buy coal mining for  three bucks, only to sell it for three hundred ten years later.

I do think that 90%+ of college is bull***t, but certification still matters in many sectors of the job market.

Of the 11k jobs, are those primarily concentrated in one city or dispersed around the organization worldwide?  

Maybe 10 years from now, SF would become the new Detroit.Please also do note, all these pure WFH companies even within a tech sector, are only applicable to software-only companies.

IMO you need to put in some major effort (studying, learning, knowing areas, etc.) to avoid financial pain when 'investing' in capital intensive sectors like real estate.

Evergrande, which is facing one of the country’s largest defaults as it wrestles with more than $300 billion of debt, has already missed coupon payments on dollar bonds twice last month.We had to do a double take when we saw this because these are absolutely terrifying numbers and are, to put it bluntly, scarier than Goldman's "worst case scenario"; what's worse this sudden collapse in China's property market is taking place before Evergrande has even defaultedAs such, any contagion from the ongoing turmoil sweeping China's heavily indebted property sector will impact not the banks, which are all state-owned entities and whose exposure to insolvent developers can easily be patched up by the state, but the property sector itself, which as Goldman recently calculated is worth $62 trillion making it the world's largest asset class, contributes a mind-boggling 29% of Chinese GDP (compared to 6.2% in the US) and represents 62% of household wealth. 

You nailed it and the only thing I would add is that if you're looking at location strictly through a recession-proof lens, the most important thing would be number of jobs in healthcare, federal government, education, IT, insurance, utilities, and other sectors that still do well in a downturn.