> The US is really big and a lot of people have rural 30+ minute commutes
The size of the country in which a commute is contained is immaterial to the length of that commute. What you mean is not "the US is big" but "things are really far apart in the US". Which they are, but precisely because of car-centric (car-only, actually) design.
Things being far apart in the US predates cars. Rail made that possible.