If you want to further the analogy you can think of those of us screaming about car-only infrastructure and the negative effects caused by it as the same people

If you want to further the analogy you can think of those of us screaming about car-only infrastructure and the negative effects caused by it as the same people screaming about pollution during the industrial revolution. The long march of time will remove car-only infrastructure because it can't outlast economic physics, but we should do it faster to limit the damage and save hydrocarbons for spaceships and medicine and stuff. Unfortunately we won't have our Triangle Shirt Factory or smog prevalence to really put the problem in your face. If we put some sort of coloring in car exhaust so you had to see it we'd ban cars within a year.