Alan Batie, a good friend of mine posted this to his FaceBook wall. I'm reposting it here so I always have easy access to his elegant presentation of what should be obvious.
A right is something you have inherently, not something someone else gives you. How can you have a right to something which may not even be possible, e.g. no doctor in a small town in the middle of nowhere. Are you going to force a doctor to go there? The concept is... just silly. Society may have a duty to provide some minimum level of care to its members, but individuals do not have a right to force other people to do things for them. There is a big difference.