So, you end up with those giant clusters of activity and people had to somewhere be able to live close to them. As people started making more money, starting families and having kids, they wanted to move into more enjoyable living, not everybody is a fan of living in a rat cage in a soviet urban project like most HN and urbanists seem to love. So, they voted for those freeways, they found the freedom to live in more humane settings in the wheels of a car that allowed them to escape the nightmare of living on Gotham.
I believe we can have both things. We can have cities, but we don't need to have only a couple of giant, nightmarish big cities. We just need to spread the business activity.