It’s rather simple, really.
Socialism and major socialist programs (like healthcare) won’t work (and haven’t worked) in America simply because most in America have lived much more prosperously than most people in other nations…and because of that, their expectations are higher.
Socialism, even at its best, is a step down from the American dream.
Europeans have never lived the American dream. Their expectations reflect that.
Americans will want capitalism quality from socialism “equality”.
And that just ain’t gonna happen.