He was merely pointing out that the mythos created by open borders dogmatists in order to perpetuate their ideology in the arena of ideas is not based upon a house of cards.
This country isn't simply a "nation of immigrants," and many of the men responsible for creating it, including Alexander Hamilton, had quite prescient reservations about opening our country's borders to any and all comers.
I still can't believe the open borders idiots who believe that virtually everyone has some sort of "right" to come here.
We also need to change the 14th Amendment with regards to giving citizenship to the children of illegal immigrants.