SOCY - Race & Ethnic - 1 discussion ques

Citing information from your readings, what does the author mean by the following: "Thus every country has been and is a "Melting Pot." But America, exhibiting the normal fusing process magnified many thousand diameters and diversified beyond all historic experience, and fed not by successive waves of immigration but by a hodge-podge of simultaneous hordes, is, in Bacon's phrase, an "ostensive instance" of a universal phenomenon. America is the "Melting Pot."

Also explain if you agree or disagree and describe any other thoughts you may have about this reading and/or the concept of the melting pot.