The difference between Europe and America in terms of 'living space' is purely a land thing. You quite simply have more space build on so you spread out your cities as much as possible. Unlike, for example, Amsterdam where you have buildings that are three stories or more tall but only have one room per floor (because you pay tax based on the building footprint not the number of floors).

From a purely humanitarian viewpoint: yes, all humans deserve free health care. I say this speaking as someone who has benefitted from it for all his life.

FRom a practical viewpoint... I think it is a more difficult proposition to achieve in real life. Our NHS is beleagured and underfunded at the moment and I cannot think how bad the American equivilent would be... probably too impractical to start off now....