I'm not sure it is. Have you visited the Netherlands? You don't walk or ride a push bike between cities there, any more than you do in the USA. Bicycles are the predominant form of transport because of how they design their suburbs. A car in suburban Holland isn't going to move any faster than a bicycle, and there nowhere to park. This is a deliberate design choice.
The population density of Utrecht (a major city in the Netherlands) is 1000 people / sq km. The population density of Annapolis (the capital of Marylands) is over 2000 people / sq km. If density is the reason Marylands should be less car centric than Holland.
> To the east of where I live there is a highway that is 287 miles long and is almost devoid of any services whatsoever, no civilization to speak of, not even a gas station. You can Google it, it is known as the "Loneliest Road in America".
Doesn't the word "lonely" give you a hint on why this is irrelevant? You aren't going to ride a push bike to pick up fuel for your tractor in the Netherlands either.
It's the USA's sprawling suburbs that weld you to your car's, not your cities or your rural expanses. It's true that's hard to change now. But there is no reason it had to be that way. Your suburbs could have been as compact as those in the Netherlands. The Netherlands made a conscious choice not to do it that way (they built free ways, decided they didn't like them, and turned them into canals [0]). I'm not sure how the USA arrived at their current arrangement but it wasn't because you "had to".
[0] https://www.theguardian.com/world/2020/sep/14/utrecht-restor...