And eminent domain, to take the land to build that infrastructure. And money. Lots and lots of money. And way more time than you think. Effectively having to level homes for miles, grade the surface and then, finally getting to build this utopian vision of public transportation, which will then need to be fed, sorry, maintained, by taxes that will shoot through the roof. Then, the displaced will need a place to stay, so enter yet more eminent domain to take more property to build vertical, because there is a finite amount of land. And this would be jn just one small to mid sized US city.

Look, I'm happy for anyone who's happy in how they do their daily. You chose it, and it works for you. Some people don't chose that life, and it doesn't work for them. I respect your way of life, it should only be fair that you respect mine. I'm not driving a 3500 turbo diesel that gets 12 gallons to the mile, stomping on the gas "just because I like the sound" and throwing cheeseburger wrappers out the window.

Difference is, I'm not trying to force my way of life on others...