Well, apart from the indigenous people, the colonists (who took the land by force) and the slaves who were brought here against their will, the vast majority of the population of the United States were able to come here due to the liberal immigration policies of the US, which can be seen as xenia.
Is there a Greek work for wanting to slam the door on others after your family made it through?
(I expect this thread is getting off-topic, though.)
If one could, somehow, peer into the soul of everyone who self-describes as conservative and against unrestricted immigration, I doubt a general unanimity of motive would be seen.
