You live in a bubble if you think a handful of countries in Europe qualify as "everyone else" in the world, and also if you think those countries haven't had any issues with Universal Healthcare.

I'm British...

Ya know, the country that scored tops on that study.

The fact is that there are a lot of people in the US that don't think they should be paying for everyone else's healthcare. This causes numerous problems when you are trying to implement a healthcare plan that covers everyone equally, for somewhat obvious reasons. I'd argue that the the US healthcare system will always be crippled as long as people feel this way, and I'm not sure how to change their minds.