Why should you have to if your rights are inherent?
Your right to life exists simply because you are alive;
That's a statement of belief not evidence of rights being inherent.
The universe is under no obligation to respect any rights you will not defend.
Then rights are not inherent.
That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed.
By your logic, rights cannot be God-given, as man (and nature) regularly infringes upon such rights as life and liberty; how can the profane infringe upon the divine?
Rights are inherent with the individual -- however, he may enjoy only those rights he is willing to defend. You are alive only as long as you defend your life; you are free only as long as you defend your freedom. If rights come from a source external to the individual (God, the State), that source can opt to rescind those rights. However, an organism's very escence rebels against being deprived of these fundamentals -- we fight to our last breath to live, we rail against being caged. No, I believe it is self-evident that rights are inherent in the organism.