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America has always been a nation of immigrants. We have heard that line often in recent years — sometimes in support of essentially open borders. And guess what? It's true.
But this isn't the only truth about American immigration. There have been surges and pauses in immigration over the decades, expansions and restrictions. Assimilation takes time.
What's also true is that even a nation of immigrants ought to be able to determine how many and who are permitted to enter and stay. All nations ought to permit anyone to leave.
Meanwhile, there exists an American ethos that has much to do with the principles of the American founding. There is an American way of life that arises from our unique history. Over the course of our history immigrants have always learned a good deal about both. It's a necessary part of assimilation.
And in the process immigrants can also be teachers.
"You Americans have no idea what you have here." Those very words were spoken to me in heavily accented English roughly a half century ago. They jolted me at the time and have often come back to mind. The speaker was a new American who also happened to be my first landlord.