One way it may be stated, with regard to governmental interference/intervention:
“What government determines is the government’s responsibility is equaled by what government takes away in personal freedom.”
In short, if government pays for your health care (even if it’s your money they’re using), you lose your right to determine your own forms of health care. Your choice is whatever they tell you it is.
One day, when single payer is a dismal reality, our medical system will resemble the VA system. And if you need an emergency appendectomy? Better have a hotline to your congressman.