Much has been written lately on global demographic trends. The disparity in birthrates between traditional Europeans and Muslim immigrants will alter the culture of Europe, unless these immigrants choose to shed their Muslim traditions and become European. That seems rather unlikely, since fundamentalism is more common among European Muslims than among Muslims in most Middle Eastern countries. Within thirty years Europe will have a Muslim majority, and it is likely that European constitutionalism will give way to the imposition of Islamic law. As Europe becomes Islamic, traditional Europeans will find it uncomfortable staying in an increasingly oppressive environment. They will soon be clamoring to leave their homelands, which will become more restrictive of the freedoms to which they have become accustomed.
Immigration to the US from Latin America is starting to level off, as our neighbors to the south move from the second stage of population growth (high birth/low death rates) to the third stage (low birth/low death rates). There will be less incentive to leave Latin America, as fertility rate decline and globalization increases living standards.
So the next wave of immigration to this country will not be impoverished people looking for employment opportunities, but more prosperous people seeking refuge from Islamic Law and hoping to maintain the freedom they had before Sharia came to dictate life in Europe.
This should be a boon to traditional American values, as the new immigrants will be those who have learned to appreciate the liberties they find here. It will also be a boon to property values, as these new immigrants will bring wealth with them and purchase homes upon their arrival.