There are a number of Public Services that quite obviously cannot be run on Capitalist, profit making, lines. As I said earlier I think, the Postal Service is one, Public Transport is another, the Police Service, the Health Service, I could go on and on.
The point is that these Services DO "make a profit", but in hidden ways that do not show up on a conventional Balance Sheet. Just think, a healthier population will produce more, and pay more Tax, reducing Crime reduces Costs, and more Tax flows in, if people pay less to get to work, they spend more and the Economy booms, a fully functioning Postal Service means businesses work at greater efficiency and therefore pay more Tax. And so on.
A basic grasp of Economics like this shows you where the current Model has failed, and will continue to do so.
As many a Meme says " Change my Mind".