We have a housing shortage[0] plain and simple and NIMBY is holding back progress on the issue.
[0] https://econofact.org/the-housing-shortage-and-the-policies-...
“The first lesson of economics is scarcity: There is never enough of anything to satisfy all those who want it. The first lesson of politics is to disregard the first lesson of economics.” Thomas Sowell[2]
[1] https://www.amazon.com/Basic-Economics-Thomas-Sowell/dp/0465...
[2] https://www.amazon.com/Reality-Optional-Essays-Institution-P...
If SF prevented any new office building from being constructed 20 years ago there would be less demand for housing locally. But the incentives didn’t line up that way. Cities need to provide schools when they build housing but office space is free of that obligation.
Similarly transport infrastructure is expensive and reduces the property taxes you collect locally.
To the extent the cart can spoof the horse, look for a downhill slope. Which will not go on forever. Once the potential energy is spent, the friction kicks in. QED all about you.
By which I mean: confuse not implementation with principle.
A bridge without that overheard is unquestionably more efficient.
Friction stabilizes a system--at no point am I advocating anarchy--at the cost of gain.
When engineering, never lose sight of the trade-offs.