Nice straw-man. If you take the infrastructure away, you would not go anywhere. Period. Because you can not pass that swamp, river, canyon, and so on. By bicycle or horse or by foot.
Not a straw-man at all. The point is: there was a choice. You can build infrastructure for cars, for bicycles, for trains, for rail, for lightrail, for pedestrians, for horses. Some of these are more or less useful without, cars are definitely in the less useful category.
It is not a fundamental property. It is not god-given. You were born into a world where car roads are ubiquitous and now your thinking stops slightly after linear extrapolation. That's not the case for everyone.
