Induced Demand needs to DIE as a concept. It is a GOOD thing - if you build any infrastructure and people change their behavior because of it, that means your city wasn't meeting the needs of the people. The whole point of a city is all the things people can do in them - if you just want to stay you get out of the city: you can find cheap houses in Montana with nothing around that will meet your needs just was well. The rest of us live in/near a city because as romantic as the cabin sounds, we overall prefer all the options a city gives us.
Note that I didn't specify you should get ahead of induced demand, only that you should. Trains are much cheaper in the long run for most cities but it requires a large investment to make them useful.
I don’t think you understand how this concept works. Because commuting by car after increasing the road capacity gets easy again, and because it’s also the most co convenient and (for a brief moment) fastest way to commute from point A to B, people switch over from using other means and the roads get saturated again soon after. You cannot increase the capacity to accommodate everyone driving, and everyone absolutely would want to drive if possible. It has nothing to do with the city’s ability to deliver, it’s about human condition and our innate need to make lowest effort possible.
Also, this is such a wildly American take, from a European perspective. No one expects city to somehow make driving cars easy here, not anymore. Would also be wild from NYC or Chicago perspective. Having lived in NYC I would not replace Subway with a car in that large of a place. Even without traffic it would take too long to move about.
Note that I didn't specify you should get ahead of induced demand, only that you should. Trains are much cheaper in the long run for most cities but it requires a large investment to make them useful.