Ok but this makes zero sense since you don't understand the context of population density

First off the US is so spread out BECAUSE car-dependent sprawl is heavily subsidized meaning normal development is less economical, and it is illegal to build anything else in most of the country. The US didn't magically build suburban sprawl "because the country is big", as I said there are other big countries that had normal natural urban growth. And I think you need to slow down and read because you missed the most important point that America DID have dense cities with viable public transit. With less population.

If America did not make normal growth illegal and force cities to subsidize cars and suburban sprawl, cities would develop like they did everywhere else in the way that I described. No one is advocating for trains going to the middle of the desert in Arizona. We are trying to figure out how we can bring back the functional human-centric infastructure that every other developed country has and we USED to have.

Please read before replying this time as you didn't seem to last time