The end of the Pacific Electric system was not a conspiracy theory by tire companies or anything like that; the price of the cars dropped and that's what consumers preferred, i.m.o.
Pretty much any major American city is less dense than it was 100 years ago. It was cheaper to build out than it was to build up.
All of that stuff you listed comes from tax dollars, and people ultimately care less about that than what's coming out of their pockets for a home purchase. Well, until it's unsustainable, anyways.
In this country we have this ideal of a rugged individualist whose out there living off the land and making his own way. Never will this rugged individualist acknowledge that he's dependent on 10x as many miles of roads as his urban counterpart. Never will this rugged individualist acknowledge that providing him with internet access on the state's dollar costs orders of magnitude more than someone living in a sustainable location. Same with delivery costs and literally every other thing this person consumes. They get to pretend to be a self-reliant individualist while leaching off of the tax dollars of urban residents who cost a fraction of the amount to support.