Is health care a right? The question is irrelevant, but yes, it is.
Is health care a right? In his recent odious Wall Street Journal editorial, John Mackey argues that "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."
(Markey is co-founder and CEO of Whole Foods Market Inc., and his Thatcher-quoting article promoting a "you're own your own, buddy" version of health care has spawned a boycott movement.)
Now, if Mr. Mackey had actually read the Constitution, he would have seen Amendment IX: "The enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people." I.e., the fact that a right is not enumerated, can not be used to argue that it does not exist.
There is, for example, no right to privacy mentioned in the Constitution. That does not mean that one does not exist.
And something may not be a "right", and yet might be expected as a basic government service. In cases like Warren v. District of Columbia and Castle Rock v. Gonzales, the courts have found that there is no right to a police response -- yet we expect tax-funded, government-provided cops to show up if we dial 911. There is no "right to food", but a government that does not deal with hunger and famine is going to at minimum have a lot of crime, and quite possibly political unrest -- hungry people are ready-made followers for radicals, and so we have food stamps and agricultural policy.