It’s historical fact and plain common sense that nations don’t survive without a national identity. Americas identity is based on Western Civilization and the historical population consists of people of European ancestry. Preserving America is one of the core tenants of conservatism not the kind of pseudo-conservatism that is mouthed off by rags like National Review, cheap labor corporate shills or LaRaza Republicans. I’m not under any illusions that the runaway immigration we’re experiencing is not obviously an attempt to dissolve America’s sovereignty and as a side benefit expand the rolls of the communist and socialist blocks in this country. If we don’t make some attempt to restore America and reiterate its Western roots and heritage like Europe is doing, America will cease to exist.
Successive waves of immigration have changed the make up of the land, and the culture. The USA was founded by Englishman (see Albion's Seed for an idea of that). The Scotch Irish, Irish, German, Italian, slave, and other waves radically changed the political make up of what became the US. In some ways, much more than the current Mexican wave. As I have said, many sociologists have stated that people from the Germanies settling in the Midwest and West changed the make up far more than any other group, and for the worse.
I am not saying letting poor, uneducated, Mexicans in is a good idea. I am simply saying that if you are trying to preserve a “National Identity”, that time is long gone. We have to many nations inside the USA to ever have one identity. And that will be the reason we fall.