Huh? How is the idea that public transit should be publicly owned Americentric? A stereotypical/caricatured Americentric take on that would be to privatize everything.
Because its publicly owned in most places publicly (Japan, China, Europe , Australia, Russia, India, South East Asia, Africa... It seemingly is only the US & Canada where it isn't
So bringing it up is very American since the comment doesn't work anywhere else.
Because public transport is owned by the public (or publicly owned entities) in many places outside the US. In Europe, it is the norm, not the exception, as is the case in many other places that have some sort of socialism/social democratic history.
Haha - at the same time many libertarians / conservatives want there to be no infrastructure owned by the public! Another way we are at war with ourselves in the good old semi-public private USA.