Americans are so resistant to public transportation because the public seriously sucks to deal with. There will be no popular utilization of public transit until we implement strong economic safety nets and extensive support/mandatory detention of people that are mentally ill. Those problems are much harder to overcome while maintaining an American standard of personal liberty than even the complications surrounding building rail. As a native of San Francisco and the surrounding area I have tried for decades to utilize public transit. The infrastructure isn’t great, but it’s also not terrible or anything. But in years where my job/living situation have me using public transit every day, my rate of exposure to human excrement or someone who wouldn’t even be aware that they physically harmed me was greater than once a week. In phases of my life where I’m driving everywhere that rate is practically zero. That stress takes a toll on my health that I have a natural instinct to avoid.