Whether we have single payer or not we are the most unhealthiest major nation on the planet. And it will cost more then they spout because of all of our groups and jealousies and accusations of who gets prioritized for medical care.
You don't see a correlation between being "most unhealthiest" and the fact that a quarter of us either have inadequate insurance or no insurance at all? The fact is, we spend more because there are too many people making a profit who contribute nothing to health, such as investors, executives, and bureaucrats... Every doctor's office has four people in it whose only job is to file insurance claims....
That's an important point.
As usual, there's a significant cultural component to this that is rarely addressed because the children are too busy screaming.
Hey, Vichy Mac, you ever been to Canada? It's like the alternate universe where the US lost the Revolutionary War, but everything else is pretty much the same. They eat the same unhealthy crap we eat, they smoke, they drink, they don't exercise, just like we do.
The only major difference is that they treat health care as a public service instead of a profit making opportunity.