We are a nation of immigrants plain and simple, the history of nations that advance and succeed are open to ideas and people. I have not read the book below but heard from a friend it is worth a read.
'Why Nations Fail: The Origins of Power, Prosperity, and Poverty' by Daron Acemoglu
Incorrect.
We are nation of the
DESCENDANTS of immigrants.
During the heyday of US immigration (1840-1940) we were a nation of 50 to 150 millions, with plenty of land to give away, jobs for all who wanted to work, and easy admission.
Today, we are nation of 310,000,000 - the vast tracts of open land are gone, we cannot even employ or house or feed all our own, and we don't need newcomers like we did before.
All things come to an end - including generous admission policies.
Nothing wrong with hanging a No Vacancy sign on the Statue of Liberty for a while, and taking a break from large-scale immigration for a decade or two.
We don't need a single additional immigrant, in the long run.
Not one.
Whatever we need, we can find or cultivate from amongst our own fellow countrymen.
Just because we have done a thing in the past, does not mean that we are obliged or condemned to continue doing it in perpetuity, moving in the future.
It's our country, and we can do whatever the hell we want, with respect to immigration.
It's the primary reason why the Brits are leaving the EU.
We're in excellent company.
If you're here illegally, leave.
Now.
While you still can, under your own power, without a set of leg-cuffs.