Civil Rights Movement let Muslim immigrants openly express their faith. [causal]
As historian Kambiz GhaneaBassiri, author of A History of Islam in America, writes, "Thanks to the Civil Rights Movement, . . . these new Asian and African Muslim immigrants came to the United States [and] did not have to change their names or dissimulate their religion."
Khaled A. Beydoun, American Islamophobia_ Unde…, loc. 199