I am a first generation immigrant! However, I am thankful to be in the USA, love this country for its openness, and admire it unreservedly for its freedoms and values.
In his book, Who are We?: The Quest for American National Identity, Samuel Huntington says that there are 2 types of immigrants to the US - 1. ones who leave their original homelands because they share and claim American values (thus the desire to come to the US), and 2. ones who immigrate for economic reasons but then want to reshape American society to their liking (and cultural/political prejudices).
Muslims, illegals, and other "multicultural"/ethnic elements that want to fall in the second category should reconsider their mistaken (and frankly dangerous) beliefs.
Good point. It seems like the vast majority of recent immigrants (both legal and illegal) are here for financial reasons.