"That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness."
-- Declaration of Independence 1776
The words "Natural Law" and "Natural Rights" only makes sense in the philosophies of John Lock, which inspired the Declaration of Independence.
The ability to alter and change governments has been declared as a Natural Right in the declaration of independence.
Aside from that, "Natural Rights" don't exist. They are a concept created by our founding fathers to attempt to unite the nation. If you disagree with the founding father's definition of "Natural Rights", then the concept is dead and there is no point continuing to talk about the matter.
After all, like everything else that has been created by humans, these concepts are all imagination and fiction. Natural Rights do not exist in the real world, they are merely a concept created by people hundreds of years ago to attempt to unify this country.
Basically, a "Natural Right" is simply the rights that the United States of America were founded upon, the foundation of our Constitution, the foundation of our Revolution, and the foundation of the philosophies that created this country.
These rights are not shared with other countries, these concepts do not exist in other hypothetical governments. "Natural Rights" are simply the rights our founding fathers believed in. Nothing more, nothing less.