Heak=lth care does serve the nation as a whole... would you stop socialized police, fire, schooling, etc?
I suppose you would since that is 'interference', no?
Look how many Canadians want to switch to the US model... or Brits, French...etc
This is like saying that it "benefits the nation" for everyone to eat, and therefore food distribution should be socialized, rather than a private, individual concern.