First of all, we haven’t always welcomed immigrants.
Partial truths or half-truths are often more insidious than total falsehoods.
And so in terms of territorial control, in terms of economic preeminence, the western share of the gross world product is declining as Asian societies in particular develop economically.
Thus, biologically speaking the American people are literally only half an immigrant people.
Immigrants are people who leave one country, one society, and move to another society. But there has to be a recipient society to which the immigrants move.
Total falsehoods can be easily exposed for what they are by citing exceptions to their claims. Hence, they are less likely to be accepted as the total truth.
It was this society and culture that among other things – including economic opportunities here and repression in Europe – attracted subsequent generations of immigrants to this country.
The British were white, English, and Protestant, just as we were. They had to have some other basis on which to justify independence, and happily they were able to formulate the inalienable truths set forth in the Declaration.