When he does, simply point out to him that ninety percent of the residents of the United States were born here. Sloppy use of language does not help the discussion. If he has been drinking a lot and this sounds like a good idea to him, take his keys away and suggest he go live for a while in a Third World country, asking himself why everyone there is coming here. Since this is a democracy, let's put it to a vote. We will win that vote.
Every sovereign nation has the right and obligation to protect itself.
Because we are a nation of immigrants, we have to allow for massive immigration which, in turn, makes us a nation of immigrants. Hence its circularity. Circular arguments are invalid in the logical sense by virtue of HOW they are structured and not WHAT do they mean.