I want this mostly because it will give a reason for people like this to care about the city around them in a real way, and act to make it better for themselves. Rather than consider its problems not their responsibility because they can avoid them by using a car.
It sucks to access things without a car because we made it that way, it's not an inherent quality of dense environments.
It's worse, because those who are rich and can afford cars don't get affected by the problems and can ignore them as they ride past in their steel chariots of doom.
But I think the correct place to do the revival is not at the city centers but at the edges; we could reduce the "land use" of suburbs by 50% or more without diminishing the quality of life, and suddenly things that don't work because the density is too low would start to make sense.
For example, it's insane that I have to have my front wall set back 40 feet from the street, which itself is 50 feet wide to allow for parking on both sides - I'd much rather have a street with no parking that was maybe 20 feet wide in total, and allow the front of the house to be right up against the sidewalk on the same lot - get more useful backyard and reduce street speed too.
Nothing you do to my city planning will make taking the bus at temperatures -20 and below a pleasant, desirable experience.
Everything where I live is accessible, but there's nothing you can do to make a bus schedule beat a car trip, and it's ridiculous that somebody a couple of miles away needs to be an hour away to justify a tiny bump in density for idealists.
It's more attractive than driving when the bus runs every ten minutes in a dedicated lane, and the car user has to pay the real cost of parking rather than have the city provide it. I know because I lived in a place like this. I used the car to leave town and for some larger shopping, everything within a few miles I accessed on foot, bike, or transit. With fewer people using cars for short trips, all of those things become a lot more pleasant.
It sucks to access things without a car because we made it that way, it's not an inherent quality of dense environments.