I’m not sure it’s a very narrow view. 80% of the US lives in an urban area. Rural areas are also already serviced by rail for cargo. I don’t think OP is suggest

I’m not sure it’s a very narrow view. 80% of the US lives in an urban area. Rural areas are also already serviced by rail for cargo. I don’t think OP is suggesting trains solve all problems. But they certainly solve more problems than we currently use them for in the US.