There are, uh, several different first-world countries in which health insurance is paid by the government which you could scrutinize to see if your assumption is worth assuming.

Or you could scrutinize the projected numbers, which conclude that it would be less expensive, in terms of government healthcare funding, to eliminate all of the ravenous middlemen causing all of the costs.

Kinda like how it'd be cheaper to just give all the homeless people housing, rather than burn shitloads of social and criminal justice funding to keep them on the streets.

These are ideological positions, though, so good luck changing any of them. So are the rolling presses -- they're not there to prop up a healthcare system, they're there to refill the troughs of irresponsible rich people whose enterprises have become "too big to fail". The problem is that the rich people have come to expect this windfall. Maybe we can save some money for them by cleaning up the healthcare and criminal justice systems!!