We have a "universal health care" program as government policy here in Australia. So I will use it as a practical example to compare.
Medicare is Australian government policy. What is that policy goal?
Medicare Australia is an Australian government agency and plays an integral role in the Australian health sector. Its objective is to assist in improving health outcomes in Australia.
http://www.medicare.gov.au/about/index.jsp
FYI, Medicare was introduced by a staunchly conservative government, so you can drop any future references to "socialist paradise dreamers".
What does it cost me? The Medicare levy (name implies NO relation at all to US Medicare) is about 1.5% of my gross salary, removed from my pay just like tax, which is tolerable compared to US equivalent costs. This levy covers most of my medical prescriptions on "on-list" medications, otherwise not. It gives me immediate and free access a GP, and to public hospitals for emergency and most common non-elective surgery and care (which is usually good quality - but that's an ongoing bun-fight between state and federal governments...whatever). The majority of such costs (the procedures price-list is fixed) are reimbursed by the government, either as cash or by the doctor or hospital "bulk-billing", i.e. getting reimbursed directly for many treatments in one go.
That is, the cost of the vast majority of medical requirements for Australians - GPs, medicines and basic hospital cover - is covered in the most part or wholly by Medicare.
How does it work on the ground? My levy is deducted when I get paid so I don't miss it. I, and most Australians, have a Medicare number and card (we have a family one). When I go to the doctor or hospital, I produce that card, and the payments are rebated more or less automatically. I may have to pay an amount over and above the rebate for some treatments.
For example, for some specialist treatments, I pay the specialist's bill myself, but then take the receipt to the Medicare office be reimbursed the "standard fee" for that consult in cash. That is, Medicare "helps" by paying "some" of my specialist medical bills. Again, this is an area that is bun-fight territory.
Does this mean everything is covered? No. Not all medicines or procedures are covered (more political bunfights as to what is and is not at budget times, etc). There are indeed private hospitals and insurance schemes here...if I pay extra insurance. I can "top up" my medical cover (known as "gap cover"), at my cost, with private insurance, to get the doctor of my choice, private hospital care, elective and plastic surgery cover, acupuncture, aromatherapy, homeopathy, etc. While ambulance is not covered by Medicare, insurance coverage for that is relatively cheap.
Is this system perfect? Certainly not! Rorts and rorters were part and parcel of the scheme, especially in the early days. But nowadays they tend to be far more the exception than the rule. And there is always ongoing hubbub about the level of coverage for new medicines and procedures (that usually cost astronomic hills of dollars unless covered in some way, putting them out of the reach of all but a few brazillianaires otherwise).
Of course, I have greatly simplified this to keep this post under the size of a phone book. But the above link will take you into the fun-park that is our own reasonably acceptable government-run medical support system. Many other countries have similar schemes adjusted to their politics and environment (Australia's is a cousin of the Canadian one from which it was copied, incidentally).
So before you start to go off on tangents about how it would not be acceptable in the USA, consider just how different the USA
isn't from most other developed countries, often a fraction of the size of the USA, that
do have successful universal medical coverage of some sort running on a much lower GDP. The only issue I can see is the lack of mental flexibility in some quarters to take on new paradigms.
Consider: Put yourself in Rob Lancaster's bed...and read RSL's Better Half's ongoing battle with medical coverage and insurance. Wouldn't it be heartening to know that those types of petty but tiring battles are rare elsewhere? And that universal medical coverage at least paid a good part of the costs of getting better? Isn't such a scheme worth having if just a few less worthless and pointless battles never had to be fought to get someone like Rob back on his feet? Yeah, I know - argument from pity. So sue me.