Why do you suppose no one gives a shit? I can't help but think of the now clinche Steinbeck quote: "Socialism never took root in America because the poor see themselves not as an exploited proletariat but as temporarily embarrassed millionaires."
How bad do things have to get here before people stop coming do you suppose? Here's an interesting article about the slowing of Mexican immigration:
http://www.nytimes.com/2012/04/24/us/mexican-immigration-to-... From the article....
"The report presents a striking change from earlier findings by the Pew Hispanic Center on the number of Mexicans who have been returning to their country. While earlier Pew studies said the data did not show any exodus, the report published Monday includes new data from the 2010 Mexican census revealing that about twice as many Mexicans returned home from 2005 to 2010 than in the previous five years. In all, about 1.4 million people moved from the United States to Mexico in that time, the Mexican census showed"
Perhaps. I'm thinking that the comparison of income top 20% to income bottom 20% isn't really the most illustrative statistic about income inequality, yet the distinction between that ratio in the US compared to the rest of the developed world is pretty striking. But why is it so different? A small, ludicrously rich class? A super-poor class? That ratio doesn't really tell you, but there's something obviously different about the US.