Another way of stating this could be "transport is a policy question." How cities are built and what transport infrastructure they're built around.
Im fairly sympathetic to the overall aims of this article. I think a transport system more similar to those in the Netherlands makes for better urban landscapes.
But... this habitual style of treating everything as a conspiracy, built around a personified enemy ("They gave legal force to a mind-set—let’s call it automobile supremacy—that kills 40,000 Americans a year)... this way of thinking isn't doing us any favours.
In day-to-day political conversations and articles, it's mostly just formulaic and lazy. Name the conspiracy, point to vested interests that have been influencing policy, find a link to established personifications of evil.. big oil and segregation, in this case.
I'm not saying we should never think in abstractions... but there is a formulaic pattern here that's old, paranoid and harmful.