This is a pretty uncharitable read of the parent poster. Many cities are upzoning, which means that corridors are being torn down and built more densely. During those times, we're seeing a lot more mixed use, walkable and bikeable spaces introduced. In Seattle we're seeing streets being closed and lanes being removed to support biking and walking.

You can make walkable enclaves neighborhood by neighborhood. And those sites are really desirable. Especially near transit. The right approach is to build more like this until there's no one left who wants to live there and cannot. For the remaining folks who have no interest in it, sure, they can have automated cars.

But right now the line is out the door for this sort of place and we cannot build them fast enough.