Here's what rhymes with intermarriage.

Consider these alternatives

assimilation / information intermarried / carried intermarriages / marriages acculturation / operation syncretism / given emigration / relation circumcision / given assimilated / dated miscegenation / information antagonism / given interbreeding / leading interracial / racial crossbreeding / leading homeownership / which bilingualism / given inbreeding / leading promiscuity / continuity protestantism / given stereotyping / writing multiculturalism / culturalism catholicism / given