1)We have 310 million (*)(*)(*)(*)ing people! You think any naton on Earth, even one as enlightend and wealthy as the USA is capable of maintaining 310 people in middle class status in perptuity? People fall through the cracks.
2)We have imported over the last 10-15 years, an entire 3rd world country worth of people who are poorly educated, cannot speak english to a reasonable degree and are completely and totally dependent on low wage jobs for their sustenance.
I guarantee you Reiver that in whatever (*)(*)(*)(*) hole nation you come from that if I imported around 10 million 3rd world immigrants into your country within a decade your poverty statistics would shoot through the roof.
No nation absorbs entire nation's worth of poor, uneducated immigrants like the USA does. We dwarf other nations immigration.
As far as I'm concerned, a nation's greatness is determined by how many people are willing to die to immigrate there.
In this, the USA is unparalleled.
People do not kill themselves trying to reach (*)(*)(*)(*) hole nations!!