> The Post Office, for example, is supposed to have its own P&L, yet we keep giving them billions every time they run out of money.

And they run out of money because of pension benefit requirements and a lot of other politically mandated issues (see e.g. https://www.politifact.com/factchecks/2020/apr/15/afl-cio/wi...).

Not to mention the events of the 45th Presidency with tearing down sorting machines and other actions intended to impede by-mail voting...