> Half of the metro areas in the US used to have comprehensive public transit! Sure, when said metro areas were a 10th of their current size with a couple orde

> Half of the metro areas in the US used to have comprehensive public transit! Sure, when said metro areas were a 10th of their current size with a couple orders of magnitude fewer residents street cars were kind of a thing. You cannot credibly expect a similar system to service the suburban sprawl around Atlanta for example. So unless the plan is to dragline the suburbs and mulch 80% of the urban population this is a complete non-starter. The sheer number of routes and volume of equipment required to service them would be financially prohibitive.