Originally Posted by You want to go where?
Sorry, the question seems to turn on the definition of immigrants. I think of an immigrant as someone who is permanently relocating (and perceived that way by the host government). Many of the non-nationals in Europe do not fit that definition. It is presumed that they will return to their 'home' country, even if that is not in reality the case. Your view seems to take a broader definition. So, on that note, I will let the matter rest.
I do not dispute any of your arguments about the current status of American immigration policy which is often arcane, inhumane, and non-functional.
Many of the "non-nationals" in Europe do fit what I stated earlier... government perception or misperception besides the point.