If the USPS were fully privatized without strict government subsidies or mandates, rural and remote Americans would likely face exorbitant delivery surcharges or lose service entirely.

Once again… the United States is very large.

> [...] rural and remote Americans would likely face exorbitant delivery surcharges [...]

Surfacing the cost of service provision to end users is generally a good tool to align incentives.

(Use welfare systems to give money to poor people. But don't worry about giving rich people support just because they are old or live in the sticks.)