Diversity is America’s greatest strength – Views From Baja Arizona…

The difference in the theory of the two is that with the ‘Melting Pot’ people immigrate to the U.S. and become Americans in every sense of the word.  They obey our laws, respect our American institutions and our Constitution and Flag, and become determined to learn the english language and not burden society, by seeking employment (getting a job) and being responsible citizens.   Becoming proficient in the english language is basically a prerequisite for getting a decent job, understanding the above items and getting a good education.  That’s not to say you can’t use another language at home or in a like group/gathering, nor does it mean you can’t prepare ethnic dishes and other ethnic dress, etc.   These things have in fact enhanced the American Experience over the last 235 years or so.

Multiculturalism and Diversity are mainly tools that certain…people and organizations use to undermine the ‘Melting Pot’, for the purpose of changing the American system of governance, economy and culture (see culture war).  It is used as a wedge, to separate and divide people along ethnic, cultural and income/assets, etc., lines and ultimately change the American mosaic into something that would be unrecognizable to the Founding Fathers, the first citizens of the U.S., or even the citizens who saw the 20th Century in. 

The great debate today is not about immigration per se, but illegal immigration, notwithstanding that certain…people, organizations and politicians have purposely tried to obfuscate that fact.

Teddy Roosevelt had something to say about immigration though, speaking of the early part of the 20th Century:

“In the first place we should insist that the immigrant who comes here in good faith becomes an American and assimilates himself to us, he shall be treated on an exact equity with everyone else, for it is an outrage to discriminate against any such man because of creed, or birthplace or origin. But this is predicated upon the man’s becoming an American and nothing but an American. There can be no divided allegiance here. Any man who says he is an American but something else also, isn’t an American at all. We have room for but one flag, the American flag, and this excludes the red flag which symbolizes all wars against liberty and civilization, just as much as it excludes any flag of a nation to which we are hostile. We have room for but one language here, and that is the English language…and we have room for but one sole loyalty and that is a loyalty to the American people.” Theodore Roosevelt in a letter to the American Defense Society in 1919.
“Every immigrant who comes here should be required within five years to learn English or to leave the country,” he said in a statement to the Kansas City Star in 1918. “English should be the only language taught or used in the public schools.” 
“We can have no “50-50″ allegiance in this country. Either a man is an American and nothing else, or he is not an American at all.”