The Sicilian and Irish populations have been able to assimilate; pour directly to the racial and ethnic melting pot that is America without missing much of a beat. However, African Americans, Native Americans and Mexican Americans will never be able to assimilate, according to conservative Jason Richwine, co-author of a controversial immigration study, and numerous others. America’s title as a melting pot was earned from breaking ties with old countries, learning a new culture, and learning a new language.