31 CFR 515.329
515.329 Person subject to the jurisdiction of the United States.
The term person subject to the jurisdiction of the United States includes:
(a) Any individual, wherever located, who is a citizen or resident of the United States;
(b) Any person within the United States as defined in § 515.330;
(c) Any corporation, partnership, association, or other organization organized under the laws of the United States or of any State, territory, possession, or district of the United States; and
(d) Any corporation, partnership, association, or other organization, wherever organized or doing business, that is owned or controlled by persons specified in paragraphs (a) or (c) of this section.]
[50 FR 27437, July 3, 1985, as amended at 68 FR 14145, Mar. 24, 2003]
31 CFR 515.330
515.330 Person within the United States.
(a) The term person within the United States, includes:
(1) Any person, wheresoever located, who is a resident of the United States;
(2) Any person actually within the United States;
(3) Any corporation, partnership, association, or other organization organized under the laws of the United States or of any State, territory, possession, or district of the United States; and
(4) Any corporation, partnership, association, or other organization, wherever organized or doing business, which is owned or controlled by any person or persons specified in paragraphs (a)(1) or (a)(3) of this section.
(b) [Reserved]
[28 FR 6974, July 9, 1963, as amended at 68 FR 14145, Mar. 24, 2003]
simply change (1) to “Any person, wheresoever located, who is a legal resident of the United States”; and (2) to “Any person legally within the United States” and birthright citizenship ends. You can’t undo existing ones, but no new ones for illegals.
That, and add the category to the exclusions within Immigration and Naturalization Act of 1952, and you’ll have it in two places.