Earlier quoted context omitted.
Nothing about that dictates it must be an operational level issue. No other carrier has government mandated delivery schedules to remote areas or laws requiring them to prefund pensions for 75 years. Of course no other carrier has tax breaks and government funding. It doesn't mean it's an operating issue though but maybe it is. The point being "government service isn't making money" assumes the goal for that service…
Prefunding medical pensions is not the reason for their cash flow problem: > In addition, with respect to financial reporting, here are the key figures for 2019: > Healthcare benefits paid out of the Benefit Fund: $3.7 billion. > Normal costs scheduled to be paid into the Benefit Fund to cover current year’s current employees’ retiree healthcare cost accruals: $3.775 billion. > Amortization payments scheduled to be m…
And again it's possible for something to be partially subsidized not just either income based or free. As you mentioned if it were 100% subsidized it'd lead to lots of abuse of the service. That does not mean the only alternative is it be 100% funded via shipping fees and 0% subsidized there is still 1%-99% subsidized which are valid options. Maybe you'd personally like it to not be partially subsidized but there is nothing strictly requiring it to be only one or the other.
Another example of partially subsidized services would be the roads the postal service and everyone else uses. They tend to be 30%-60% paid for by e.g. gas taxes or tolls and the rest subsidized via general taxes. That doesn't mean roads are failing to turn a profit they are also working as intended being somewhat use based and somewhat a public service.