When you read about the changes he wants to make, it makes a lot of sense. His focus is to have reforms that are "financially responsible" and that all individuals "the freedom to choose docotors and health-care services that best suit our own unique set of lifestyle choices." This is not something we would get under the current Democratically authored legislation being bandied about in the legislative branch.
I think some of the issue the "progressives" have with Mackey's arguement is his correct assertion that healthcare is not a right. Here is a short quote.
"Many promoters of health-care reform believe that people have an intrinsic ethical right to health care—to equal access to doctors, medicines and hospitals. While all of us empathize with those who are sick, how can we say that all people have more of an intrinsic right to health care than they have to food or shelter?
Health care is a service that we all need, but just like food and shelter it is best provided through voluntary and mutually beneficial market exchanges. A careful reading of both the Declaration of Independence and the Constitution will not reveal any intrinsic right to health care, food or shelter. That’s because there isn’t any. This “right” has never existed in America."
Read the rest of the article for a good dose of reality from a succesful business man. Politicians could learn a thing or two from his real world ideas.