I'm confused by the first point. The USPS has a monopoly on sending packages and letters? I recognize the USPS is subsidized by the US government but that is ex

I'm confused by the first point. The USPS has a monopoly on sending packages and letters? I recognize the USPS is subsidized by the US government but that is exactly my point. They amount of real money I'm taxed that eventually ends up subsidizing the USPS seems to me to be less than the money I pay to ship using non-subsidized services. If the government is able use my tax dollars to "artificially" push prices lower than on the "free market" while ensuring that the service is available to nearly everyone in the country, that feels like a success. Are you saying if the USPS didn't exist FedEx and UPS would be cheaper?