You "know people"? What about the tens of thousands(studies show 18k-45k depending on methodology, the 18k figure is from conservative estimates) of American citizens who die every year because they simply can't afford to take part in your health care system? I guess since you don't know them, they can fuck off and die?
What you call propaganda is simply truth.
I'm a jr. doctor in Sweden and our (single payer) healthcare costs per capita are way less than the US (even though we rank way up there in costs). Sure, we do have long queues for some diagnostics, especially when the illness in question is not life threatening (such as back pain, which btw generally just gets better on its own in a few years, no treatment other than acetaminophen or some other mild painkiller required). That said, implying as others in these comments have that single payer systems skip cancer tests and other life threatening diagnostic tools is not only misleading, but often based on ignorance or plain lies. Doctors here have full authority to order any damn test we like, the life of the patient goes before all else, anyone telling you different has no clue.
In short, the us system of insurance is inefficient (poor people often can't pay for regular check ups which increase costs when they do have to go to the ER), expensive (find any list of healthcare spending per capita, then remember that you don't even cover all of your citizens) and finally just plain unethical (if you can't figure out why, you're a shitty human being).
Ps. We even have private health care in Sweden, it's just funded publicly. So spare me the "socialist commie" bullshit. And yes, arguing about this makes me mad, which doesn't happen often.