I think there are other (unacknowledged by public transport advocates) concerns people have with passenger rail. Namely that every light rail car in every major city smells like piss already and feels much more unsafe than your own car. Until that reality is addressed and mentally ill people are not permitted to share the same space as normal, functioning members of society, people will continue to choose their own private transportation whenever possible.

If you don't think this is a reality then you should take a look at some of the shit that happens on BART and NYC subways. My chance of getting pushed off the platform or being the victim of a racially motivated hate crime is 0 in my own car.