That is utter BS
Banning is not freedom of association
It certainly is in the US.
Boy Scouts of America et al. v. Dale, 530 U.S. 640 (2000), was a landmark decision of the US Supreme Court, decided on June 28, 2000, that held that the constitutional right to freedom of association allowed the Boy Scouts of America (BSA) to exclude a homosexual person from membership in spite of a state law requiring equal treatment of homosexuals in public accommodations.
-Wikipedia