What many fail to understand is the US is geographically a heck of a lot larger area than a Japan or FRance. If this type of infrastructure had been started years ago, the obvious costs to build them would have been a lot cheaper then. The concentration of populations also makes it financially a risky scheme.
Also, are all those lib commie bloggers willing to waive any number of lawsuits that inevitably will prevent the construction of any route until it has been thoroughly contested due to environmental concerns over the effects on “sensitive” lands? I seriously doubt that.
Better they just move to Europe.. and save us all the melodrama and backstabbing.