In the U.S., ideas about the need for black racial purity became central to Garvey's thought. He vehemently denounced miscegenation, believing that mixed-race individuals were "torn by dual allegiances" and would often ally "with the more powerful race," thus becoming "traitors to the race". Garvey argued that mixed-race people would be bred out of existence. Cronon believed that Garvey exhibited "antipathy and distrust for any but the darkest-skinned Negroes"; this hostility to black people not deemed of "pure" African blood was an idea that Garvey shared with Blyden.