You can consider all you want, but the USPS has a special place in US law. And, no, I'm not talking about the legislated mandate. It (specifically, certified mail) is one of the few accepted ways to legally inform someone of a subpoena, etc.
Also, you think that rural folks not being able to send or receive mail would be okay? I hope they don't have any bills to pay.
I'm saying if the USPS would have started out as a private model it would be in better shape now.
Or should the government take over the phone companies because cell phones don't work at the bottom in the middle of the desert in Nevada. Some poor smuck might decide to live there?