Having experienced what happens in a socialized, European system through what happened to my grandparents, I can tell you that you really don't want it. When they finally identified the cancer with my grandmother, they only would give her pain medication. They would not treat her with surgery, chemo, radiation, or whatnot. She died in the hospital and there was a state-mandated autopsy. When my grandfather needed anything, they gave him pain meds and sent him home... no matter how my mother or my aunt argued with the doctors. The "death panels" are quite real... though they aren't necessarily called that. They do make decisions in those systems regarding what they will and won't do based on a person's age, condition, etc.
Socialized medicine works fine for an overall healthy population that takes care of itself and doesn't have junk food shoved down its collective throat. Until you can get the corn refiners and big pharma out of their shared bed, the US will continue to be a generally unhealthy population.