Or, you have foreigners, however small a percentage, who come in illegally and take jobs for low wages, meaning it becomes more difficult for citizens to get a job, and leads to financial difficulties. Again, never said they weren't an important work source. Immigrants take some of the lowest jobs. One good person doesn't mean all immigrants are intelligent beings. You have foreigners who can get full scholarships to colleges here, while you have the citizens who can barely afford a term. Of course the immigrant will shine when our own people don't have the chance.
Also, you should understand my position before you become so cocky. I'm for immigration, if you do it legally. What I support is higher restrictions on who can come over, and why. I support the banning on certain countries, due to reasons I have no intention of discussing on here, but I believe that people should still have the ability to travel.