> Rail transit still works in many non-dysfunctional countries.
Define "works". Sure it can move millions of people each day, but those people live miserable lives most of the time. Have you lived in a city where commuting one hour each way by train is considered "very good" ? And some of the worse are around 1.30-1.45 hours each way, each day? Even if for a while the train is fine, if the city is growing it will become unbearably crowded, smelly, hot and just a nightmare to deal with when you're tired and want to get home at 6 PM.