No, GP is right. Check out the urban/rural populations in 1900 [0].

Cars allowed for suburban sprawl but the country was already really spread out before cars.

Maybe if cars didn’t exist we would have eventually consolidated into dense population centers.

You’re right that US cities were large and well populated, but that’s not where most people (60%) of Americans were.

[0] https://en.wikipedia.org/wiki/Urbanization_in_the_United_Sta...