At this point it seems most internet dwellers under the age of 35 subscribe to the sentiments of /r/FuckCars [0] but just yelling about the problem on Reddit and Vox isn't going to accomplish much. You basically need cities redesigned, which is going to take a long time. For those who are so passionate about the problem their best bet is probably to get involved in local politics or urban development than pointing out how Elon's tunnel project is dumb for the 100th time.
Or simply as you age, move out of places designed for cars and to places designed for walkability. It's an easy solution if you have a skill set that's in demand and command a high wage.
Shitty suburbs will slowly become abandoned as high skilled workers are leeched away by decent living conditions (i.e. not sitting in a car for 90 minutes a day, 5 days a week)
As a counterpoint, at least for the WFH crowd, it's far easier to afford a space that accommodates 1-2 comfortable home offices in the suburbs than it is in a walkable urban environment.
Not to mention the other conveniences rarely afforded to urban apartment dwellers...
Point being - I'm not sure I see the suburbs disappearing just because car-centric development is suboptimal.
[0] https://www.reddit.com/r/fuckcars/