“The document you’ve uncovered concerns a very specific class of American citizen - American women who married and lived abroad, and were married to non American citizens who would be considered aliens.”
Not true. This is portion of a detailed interpretation of the Law by USCIS. It’s similar to the FAM used by the State Department in that it provides guidance to government employees.
At the link, click “previous document” and you’ll see ...
“A similar loss of United States citizenship was sustained by a citizen woman who married a United States citizen before September 22, 1922, if, during the subsistence of the marriage and within the captioned period, the citizen husband acquired a new nationality by naturalization in a foreign state, the citizen wife established residence abroad with the naturalized husband prior to September 22, 1922, and through his naturalization acquired the nationality of the foreign country in which he was naturalized. 13a / Expatriation of the wife in these circumstances constituted loss by naturalization in a foreign state, 14/ a subject that is discussed further,in terms of the husband’s naturalization after September 21, 1922, in INTERP 349.2(a)(3)(x).”
Anyone can move out of the country, naturalize in a foreign state, and may or may not be issued a Certificate of Loss of Nationality by the current SoS. It’s discretionary on the part of the SoS.
“Not true. This is portion of a detailed interpretation of the Law by USCIS. It’s similar to the FAM used by the State Department in that it provides guidance to government employees.”
Yes, and it applies to a very specific circumstance.
1922 is crucial because of the ratification of the Nineteenth.