Car dependency is a feature of LA, not a bug. And not a secret one gradually discovers — LA is famous for exactly that. How would Waymo make anything but the smallest dent? How many people who don’t have a car in LA can afford Waymo or Uber?
Waymo and the like perpetuate car dependency, they don't alleviate it even a little. They are not solutions.
LA specifically practically requires residents to drive everywhere due to distance and decades of car-centric urban design. I grew up in LA.