And Samuelson conveniently ignores the $22 billion in 'remittances' sent to Mexico from the US by illegals when he talks about the 'mere' $63 billion surplus they have over us.

That is real money which requires nothing to be produced for Mexico's oligarchs to benefit.  

"Carlos Slim’s empire broken up but oligarchs still control Mexico"

http://theconversation.com/carlos-slims-empire-broken-up-but-oligarchs-still-control-mexico-29072