Isn't it a very unhealthy thing for a "community" to be protected and serviced by people who do no longer live there? Who get pushed out further and further from it?

A city, where you have separate classes of homeowners and all the service personal commuting in sounds pretty dystopian to me.

The problem is that they continue to be pushed out further and further from their jobs every year because cities like Palo Alto keep adding thousands of jobs and almost no housing. That means professionals like me get pushed out of PA, move somewhere cheaper, and end up pushing out people that make less. All of these things are tied together and at the end of the domino what you get is homelessness which we've seen spike in the last 5 years.