Krisken said:
why would you trust their health to a private company who's interest isn't the clients welfare, but to stocks?
An insurance company that consistently go over budget will not exist for long. Customers and businesses won't choose insurance companies that have terrible coverage. Customers and businesses will sue insurance companies that do not meet their policy obligations.
The gov't, however, can go over budget, can force people to limit their choices, and cannot be sued. Further, the people can control the gov't in non-productive ways. Even though OCR systems can read the myraid of forms people turn in to the gov't, representatives have a cash incentive to keep jobs in their state, which means preventing technology from replacing people manually typing in forms. Backlogs fill up, and at the end of the day you have to wait 6 months for a passport. It's ludicrous.
There are many, many, many differences between private industry and gov't programs that make private industry often better, cheaper, faster.
The best places for gov't resources are where the private sector is unable or unwilling to meet a basic fundamental need. Poverty level healthcare, for example, is one of these areas.
Middle and upper class healthcare, however, is doing what its customers want it to. If healthcare is too expensive, then eventually some insurance company will come out with cheaper insurance for a different set of tradeoffs (for instance, limited liability for the doctor, so the doctor can charge less due to having to carry less insurance). People will choose what they want, though change will be slow.
-Adam