Why would we be impressed with ourselves if the United states nationalized health care? As if it were some giant point of enlightenment in our country's history? Ooh, look, we made a law that makes it illegal not to fund our single-payer health care system.
That's not impressive. That's simply coercion.
Now, if a group of people got together, formed a not-for-profit and sought private donations in order to pay for the medical bills of the disadvantaged... I would be impressed by that.