I quite agree. However, I was responding to the mistaken idea of the author that we should return to enforcement of immigration restrictions like those put in place by the Founders. Which of course would mean none.
As I understand it, till the later 19th century one generally docked in America, walked off the boat and into the country. There just wasn't any real federal customs or immigration enforcement mechanism in place in today's terms.
The initial immigration restrictions only referenced criminals, Chinese, prostitutes and other undesirables.
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.
ping