By using the term 'fixing' are you implying that the goverment can't repair the health care system, can't set the prices of health care, or, in a Southwestern use of the term 'fixi'n', the government can't start to do anything with health care?

If you are using the term fix as in 'set the price'....

Why can't the Government fix the price of health care? Insurance companies don't seem to have any trouble doing it.

As far as anyone fixing the prices for anything.... I think that ruins competiton, but as long as health insurance companies are exempt from anti-trust laws they will continue to fix the price of health care in the US.