I remember having this same conversation with a family friend in another country when I was younger. I had read so much on the internet about how American healthcare is bad in every way and EU/UK/Canadian socialized medicine had it all figured out.
The family friend patiently explained all of the things I take for granted in America, such as being able to choose my own specialists, getting a long list of treatments that were very difficult to get approved in their country (ADHD medications, for example), and the ability to shop around for shorter wait times.
Really opened my eyes to the tradeoffs that come with different systems, whereas the Reddits of the world would make you think America is the worst in every dimension and there are no downsides in other countries.
The more I read these conversations, it becomes clear that Americans don't actually want the healthcare systems and rules of other countries. They want most features of American healthcare, but without the pricetag.
There's a lot of room to work on improving how things get paid for, but I worry that anything that involves compromise or tradeoffs is DOA, politically. We want it all, we want it now, and we don't want to have to pay for it.