We need nationalized electric railways and buses. Cars don't need to disappear in order to increase access to better options. Governments need to stop lining the pockets of the automotive and oil industries by forcing us to rely on them.
And you’d have to garner popular support. North America should be renamed “Carbrainistan” because of how attached people are to having a vehicle and taking it everywhere.
honestly if we could just stop subsidizing car infrastructure then it would naturally sort itself out. Public transportation is more sustainable and provides a stronger economic impact