Incorrect. Yes, the jobs are in the cities, but there are many other cities besides the Bay Area. In most other cities, lower-paid people (e.g. service workers) are able to find places to live. What we're talking about here is a problem mostly unique to the Bay Area.

I'm simply advocating that all the service workers relocate to other cities. I live in the DC area; there's tons of restaurants and other businesses here where service people work, and while housing is relatively expensive, we don't seem to have the problems with it for lower-paid people that the Bay Area has.