To be honest, I haven’t seen anyone else mention the real reason: America allowed private companies to buy and own the lands under the rails in the 1800s in order to deal with the massive distances across the US to connect the West and East. 150 years later and just a few companies own almost all the track and rail across America. Almost all private, not public land. Public citizens and communities have very little control over the railways going through their communities. These companies lobby against and make it difficult to introduce new, public rail lines for a multitude of reasons. This is one of very many examples of how corporations abuse law, monopolistic practices, and media to lessen the power of American citizens.