Thomas Sowell, senior fellow of the Hoover Institution, argues that the Affordable Care Act (Obamacare) is just an old program:
What is older than the idea that some exalted elite know what is good for us better than we know ourselves?
Insurance is an institution for dealing with risks. It is a costly and counterproductive way to pay for things that are not risks […] Your annual checkup does not cost any less because it is covered by insurance.
Sowell also points out that Obamacare was initially supported by the idea to help the minority of people lacking health insurance. But instead of directly helping those people, the new health care policy now affects everyone.
Since there has never been a society of human beings without at least some segment with some problem, this is a formula for a never-ending expansion of government power.