Why does that matter?
It matters because the freight lines will not upgrade/maintain the tracks to provide faster and more timely, competitive passenger service although it is the heavier freight traffic that contributes most to track wear & tear.
Well, then, Amtrak needs to build their own lines if they don’t like what is available. No, wait, they can’t do that. They don’t have any money, except what they can bilk out of the taxpayers. There is a very good reason why no one in the private sector is operating passenger trains anymore. It ain’t profitable because they ain’t efficient for moving people and they are very expensive to maintain. Forest, meet trees.....