Key point from the article in your post:

> Controllable income, which takes into account operational expenses including compensation and benefits, excludes the $5.8 billion payment mandated by the government to prefund the agency's retirement benefits. > > Excluding the obligation, the Postal Service would have recorded net income of about $200 million in 2016.

Fine. Public transit usually loses money, too. I'm OK with all of that, because they're public goods, they're things that make life better for everyone in the city/county/region/country.

I don't expect government entities to make a profit; as long as they're run reasonably well (and they usually are), well, that's what taxes are for.

If I were building a healthcare system, I'd be looking to France/Germany for a role model

Switzerland's health care systems beats those by a mile. Every expat who knows these countries can confirm this.