Your argument is in bad faith and you're speaking from smug ignorance. That's not what I said. My point is that the US and European systems have more difference

Your argument is in bad faith and you're speaking from smug ignorance. That's not what I said. My point is that the US and European systems have more differences than just who pays the medical bills. And if you just address the payment without any of the multitude of issues in the US system you are doomed to fail. I think it would end up a lot like the college loan system has. Because the ones responsible for the high costs wouldn't have any reason to change what they are doing. For example, many hospitals and clinics in the US have been bought up in the last decade and are now owned by massive health care companies who have outsized power. They are able to eliminate competition not just for patients but also for healthcare workers looking for job opportunities. CHI is one such example. You need to bust them up. Every aspect of the US system will have examples like this. I'm not saying single payer wont work. I'm saying single payer on its own isn't a solution because so much more is broken that isn't broken elsewhere.