高人指出有 exceptions: https://www.uscis.gov/policy-manual/volume-8-part-f-chapter-3
Congress provided two statutory exceptions for aliens who might otherwise be found inadmissible for their membership in or affiliation with the Communist or any other totalitarian party. There are two categories of exceptions: involuntary membership and past membership.
The first category of exceptions applies to aliens whose membership or affiliation is or was:
- Solely when under 16 years of age;
- By operation of law; or
- For purposes of obtaining employment, food rations, or other essentials of living and where necessary for such purposes.
If an officer has determined that the alien has been a member of or affiliated with a proscribed organization and one of the involuntary membership exceptions does not apply, the officer should evaluate whether the past membership exception applies to the alien.
An alien may be excepted from inadmissibility under INA 212(a)(3)(D) if the alien can establish that:
- His or her membership in or affiliation with a proscribed organization terminated at least 2 or 5 years before the date of receipt of the application (if the alien’s membership or affiliation was with the party controlling the government of a foreign state that is a totalitarian dictatorship as of such date, the alien must establish that his or her membership or affiliation terminated at least 5 years before the date of receipt); and
- He or she is not a threat to the security of the United States.
这么算的话，国内的少先队员和共青团员其实都是 involuntary membership，都可以被排除掉了，应该是没事的…