Would the US be better if everyone channeled their “Inner Immigrant"?

While I was reading the responses of this question, and it made me think; if we all channeled our ”Inner Immigrant” would we have a better, stronger nation? I hear all the time, be they friends, people I worked with, or did work for, at one time or another someone will talk about how all these foreigners coming here and taking over the businesses. Most of the businesses in the neighborhood is owned by people who were not born here, or arrived in the last 15 years. When I ask these business owners they expressed how they felt that if they could just get here they could make it, or become rich. They see all of the opportunity that is here to make money, start a business their homeland could never offer them. They believed that to the point many sold all they had to get here; arriving hardly speaking the language and less than $1,000 in their possession more than not. Some have even been down to $250. They do not complain about us who were here first having a leg up with all the education and knowing the ins and outs of the culture. Most of the people complaining about what the immigrants are obtaining are griping that our government is not doing more for them (aka giving them free goods and services) and doing so much for the immigrants and those people overseas. If our native born citizens will just believe in the free enterprise system and that there is a path to wealth for nearly all Americans that this nation will be stronger, and more prosperous the way it once was?