The country was built on railroads, the poor excuse that it’s “too large” for rail and walkable cities was always a cop out, people too lazy or blind to realize that driving to McDonald’s in your F150 after filling a flatbed with Costco Groceries isn’t how the rest of the planet lives.
New York and Boston are anomalies on the American map. You really won’t find any other city inside the U.S. that has as many pedestrians.