I work in a store staffed about half and half, and every Mexican friend I have there is totally Americanized and wouldn't think of living like these that you described. They are proud of being Americans and fly their AMERICAN flags with pride. They have embraced the way of life we all enjoy here and, yes, they work very hard....and learned and speak English the same as I do.
Enough Kerry ... I surrender LOL.
That's all great, but try and remember there are probably over a billion other good citizens across the world who would love to join them, how many do you want to let in?and under which law?