I read the article on Yahoo that said some 25billion dollars of american money is sent back to mexico every year from migrant workers. What type of impact does this cause to our own economy? How much does this play into our recession?
Money by itself doesn’t mean anything, because money is simply a medium of exchanging goods and services without having to rely in barter. What is really important to an economy is what is being produced and consumed, not money per se. As you can see in the volatility of the stock market, vast amounts of money "disappear" in a couple of days. Where does it go? Does it matter? Are we really poorer?
The money being sent overseas was given to the immigrants in exchange to their labor, which helps the US produce goods and services that are consumed here and abroad. The money given to the workers is just a symbolic "I owe you" by the government, effectively saying "you produced all of those shoes that will benefit American consumers, so you can take these pieces of paper and exchange them for whatever good you want." Instead of buying things, they send the money back to their families.
How does that affect the American economy? It depends on how the recipients of the cash decide to spend it. Do they buy American made sneakers? Or tickets to watch the latest Hollywood flick? Even if they buy something produced domestically, any increase in their national wealth is going to increase their country’s ability to develop, which in turn will discourage illegal immigration and make it a better trade partner.