assimilate into servitude and subjugation, sure, absolutely. just look at the history of these groups during the time period you're asking about, they were doing menial work with extremely limited labor rights and social acceptance for the most part.

and yes a lot of civil rights gains largely if not entirely associated with blacks impacted other groups directly. the result of brown v board, for example, didn't just establish busing and other forms of integration for blacks, it also established bilingual and multi-cultural education for latinos, asians, etc.