"The advocates of a constitutional right of privacy speak as though that right were expressly stated and enumerated in the Constitution."
These people who assert that we only have the rights that are enumerated in the Constitution have it all wrong. The Constitution was written to restrain government, not to limit the rights of the people.
I do have a right to privacy, arguably through the 4th Amendment,and also because God gives me one. Privacy, the right to be left alone as long as you are not hurting anyone else, is a natural right. I do not need government permission to be left alone.
Besides, the Constitution and the Bill of Rights states very clearly that the enumeration of certain rights is not intended to disparage other, unenumerated rights that we also have. An unenumerated right is just as much of a right as an enumerated one.
You have a right to privacy, but that is not an absolute right.