Most US cities centers were not built to late, instead they were bulldozed for the car, those are 2 different things. The US used to have beautiful city centers and nice urban fabric around those centers.

> A lot of them were built with transportation in mind.

Complete nonsense, the Post-1945 push for suberbia had nothing to with 'transportation in mind', the reason they wanted it was totally different.

The reality is more that they pushed suberiba and only then realized the transportation problem it caused, and then they reacted with every increasing highway and stroad building.

> Technically they exist in US cities too, but especially on the west coast they're just not a viable alternative.

Its not an alternative because its either not funded or badly organized.

Its bad because the government doesn't care that its bad, its not actually a fundamental problem.

West coast cities like Portland and Seattle both have very good transit and in my experience is generally better than driving since traffic and parking are awful. Where I live on the west coast is a mid sized city and transit is completely viable, my family only drives on weekends for example.

While there is obviously no one easy solution for every city situation could easily be improved in a lot of them if there was political will. At least it would be 1000% more sane than pitching underground car tunnels.

It obviously take decades not years, but again Tesla full self driving was promissed back in 2016 and something tells me it would be a big success if it will be deployed on scale in 2036.