The starkest example of this for me is comparing Orlando, Florida with Malmö, Sweden. Orlando is the end game of car-centric planning. The city feels bigger than its population suggests because you spend half an hour in a car just to get anywhere. The eight-lane highways and endless parking lots are supposed to make driving easier, but they create the very congestion that makes driving miserable. This architecture of disconnection means fewer spontaneous encounters and more social isolation. The city is designed for a machine, not for people.
In contrast, Malmö's population is actually larger than Orlando's, yet a 30-minute bike ride can get you literally anywhere. The largest road through the city center is a quiet, two-lane street that prioritises people over cars; as there are large crossings and lights. This isn't an accident, it's a choice. The city's excellent public transportation and extensive bike lanes make the car a choice, not a necessity and because it's penalised: the only drivers are the ones who need to be driving, for which now there are open roads (as long as you're patient).
The truth is, every person on a bus, a train, or a bike is one less car in front of you. Giving people real alternatives is the only thing that can truly reduce traffic. This isn't an attack on cars. It's a demand for sanity, a call to build cities that work for everyone, including those who choose to drive.