[vbmoneyspender]

Here is the applicable language from the 1790 statute - and Cruz clearly fits within its parameters as a natural born citizen: And the children of citizens of the United States that may be born beyond Sea, or out of the limits of the United States, shall be considered as natural born Citizens: Provided, that the right of citizenship shall not descend to persons whose fathers have never been resident in the United States: Provided also, that no person heretofore proscribed by any States, shall be admitted a citizen as aforesaid, except by an Act of the Legislature of the State in which such person was proscribed.

[Parley Baer]

I see where the problem may lie. The 1790 statue says “citizens” which means father and mother. Cruz’s father was not a citizen. However his mother was. I can see where there is a case to be made.

[jennings2004]

What means: “...children of citizens...”? Is the plural referring to both parents?

[philman_36]

...shall be considered as natural born Citizens...

You're ignorant too?
That means that those naturalized under the act would have the same protections under the law as a natural born citizen did, not that they became a natural born citizen through the passage of the law.

Boyd v. Nebraska ex Rel. Thayer 143 U.S. 135 (1892)

Naturalization is the act of adopting a foreigner and clothing him with the privileges of a native citizen, and relator's position is that such adoption has neither been sought nor obtained by respondent under the acts of Congress in that behalf.A VIEW OF THE CONSTITUTION OF THE United States of America. BY WILLIAM RAWLE, LL.D.

CHAPTER IX. Of the Enumerated Powers of Congress

The mode by which an alien may become a citizen, has a specific appellation which refers to the same principle. It is descriptive of the operation of law as analogous to birth, and the alien, received into the community by naturalization, enjoys all the benefits which birth has conferred on the other class.

I hope those help you better understand what that phrase means.