Cars seem to live in a special category in peoples minds where the costs simply do not exist, and thus the problems can be solved by simply throwing infinitely more resources and space at the problems.
Cars are inherently spatially inefficient, which makes them a terrible form of transport for cities. That is the hard mathematical reality that so many people avoid reckoning with.
Think of the space taken up by 1000 people on a single metro train, vs 1000 people in nearly 1000 cars. Think of 1000 people on bikes vs 1000 people in cars.
It's so obvious that this is a terrible way of moving people about, and we see this in congestion, in longer commutes in spite of cars traveling at higher speeds, sprawling patterns of urban development, road deaths (the biggest cause of death of children in most western countries), noise, pollution, sprawl, inactivity and social isolation.
Only ideology (car brain) prevents people from seeing it as the problem it is.