Unless you’re a Native American, every last one of you (including me) are descendants of immigrants*. Immigrants make this country great. The more the merrier, if you ask me. I think we should let every single person who wants to be an American become an American, with a minimum of fuss and paperwork. I support free trade and that includes the free flow of labor. The only people we should keep out are those who should be in prison; i.e., convicted, fleeing felons. Everyone else is more than welcome as far as I’m concerned.
*Actually, I take that back. There was a time when both American continents were unpopulated, so the first “Native” Americans were immigrants, too.