Because you have to allocate recourses to make tracks along with building through natural environments like mountains and forests. The U.S isn’t a giant super flat world from Minecraft. Also the amount of trains that have to be running at the same time to go across country regularly is a lot too. Did you not take U.S history?
okay first of all how come we don’t have trains in the midwest like kansas etc? a lot of this country is super flat lol. also pretty much every country ever disproved this, like a lot will literally build their trains through buildings because public transportation actually increases productivity as well as quality of life
sorry you’ve been given crippling anxiety so you’re afraid of interacting with people on public transportation but the rest of us are normal and appreciate the convenience. also roads in this country were objectively used to as a form of segregation through making cars infinitely easier to access if you were rich/white
because car manufacturers become extremely wealthy when they force everyone to buy their cars in order to survive? trains would hurt their profits by decreasing car reliance. they have continually lobbied against trains. it’s what elons hyper loop was, he admitted he never intended to actually make it he just didn’t want cali to start building trains