Privatize or downsize the USPS? Rural customers worry either option will hurt them
(www.iowapublicradio.org)
If usps doesn’t want to deliver to rural addresses, fine, but set up some alternatives. Create a secured remote mailbox, or offer P.O. Boxes for free.
The fundamental problem here is that the US population doesn't really want to pay for stuff where they don't directly benefit. In "me first" politics, rural populations are screwed.