This should hardly be seen as profound. In the past, self-defense was viewed as a human right. The Bill of Rights does not grant rights to the citizenry of the United States, it recognizes natural rights. One of those rights — a veritable law of Nature — is the right to resist.
The cops should be thanking god for this law -- it will straight up save their lives, as they will have no excuse for their current behavior. That being no-knock raids in the dead of night wearing all-black combat duds and balaclavas.