Wrong. Individually Urban neighborhoods were about 100M. See what you have done is combined urban and suburban populations like it's a political map. But the suburban population of the US is 175M with rural adding 46M.
So no, most of the US, does not experience this nor do they live in a city. They probably live near a city.
Look even expanding your scope here, only 40% of them live in early suburbs vs late and exurb. And only the early suburbs from the top 6 metropolis. The vast majority of small metropolis early suburbs look nothing like this.
North America as well as Latin America and the Caribbean were the regions with the highest level of urbanization, with over four fifths of the population residing in urban areas.
Looking at counties instead of actual cities is your problem.
Exactly, the comic is showing an urban driver's problem. Fortunately the USA is massive and we have many more uncrowded roads across its vast and beautiful landscape that drivers can travel freely upon. Traffic jams are rare in my area, but occasionally I visit Atlanta or some similarly large city and marvel at how much it sucks to drive in their traffic.
True freedom includes having room to breathe and roam. For those who haven't experienced it, my condolences.