Because those aren’t the actual arguments they respond to, just the face of the arguments. The real argument is that the car is an extension of the self. They should be able to drive anywhere, park anywhere, drive anything, without fear (Traffic deaths are unavoidable and unremarkable), judgment (I drive a Tesla, I’m saving the earth!), or undue cost (gas and maintenance. Sometimes tolls.) except for that which they’ve already internalized.
Public transport is by definition collective. The train is not an extension of you. It is a thing we all collectively benefit from. It isn’t tailored to your specific tastes. It doesn’t go 0-60 faster than Joe Nextdoor’s train. Everyone pays the same, you can’t show off how fancy your ticket is.
Some kid killed on the tracks is the fault of the train, because the driver could have been any of us. We are relatable people. The train is an unrelatable, unaccountable “us” that Americans will never, ever choose over their ideal “me.”