Dear Always,
The main point is that the Bill of Rights is not natural law. It is contrived law. It is man made to pacify the concerns of people. And they are definitely not self evident.
The other point is, that our individual rights are largely contingent on where we go to enforce them. Our discussion of personal freedoms emanating from the Constitution cripple them to whatever the Constitution would make them into. Once our elected leaders turn toward limiting our rights, the force of The Constitution will be right there along side them.