>>512041624 (OP)We are a huge nation with multiple major cities spread out into different types of geological areas
It's not like Japan where everything is basically in Tokyo or Russia where Moscow and St Petersburg are the only cities that matter
Connecting the two biggest cities would requires spanning an entire continent and either updating the ancient railroads we already have, difficulty since they are still used by cargo trains, or building new ones, a costly endeavor and a difficult logistical challenge.
Not to mention that a lot of people live in suburbs and the trains stations would be a mess
It just makes sense for us to rely on planes for large distances and cars to get us into cities from suburbs
Also niggers would ruin them