Demand will be near infinite, supply will be finite. Health care will have to be rationed by availability of services. We have all heard the stories of year long waits for otherwise routine dental care in Britain, or Cat scans in Canada.
Health care is too complex to be solved by government. Only the free market can possibly provide something remotely close to reasonable care for a reasonable price.
I have lots of stories. My sister-in-law spent her first night, after giving birth to her first child, in the hallway of the hospital. This was in the 70's. My husband's cousin waited 2 years to have her gallbladder out.....elective surgery. I could go on and on. That will be for the next thread here on a possible NHS.
As I said, the debate over whether or not we are going to have a system of free, universal health care is over. The only thing left to argue is how best to implement the system.