As I posted earlier, which you come how conveniently "forget", if citizenship is passed through the blood it has nothing to do with law, does it. It becomes a birthright.
You posited that Cruz has his citizenship via jus sanguinis, not me.
American law should always reflect our best understanding of natural law. There are two natural law principles that are weighed when granting citizenship at birth. Cruz is through blood. With others it is soil. With others it is some combination of the two.
My natural right to keep and bear arms is not merely a statutory right because it is recognized by statute. A natural born citizen is not merely a statutory citizen when that natural allegiance at birth is recognized by statute.