2) The Mexicans routinely murder Guatemalans, Costa Ricans, etc... who cross their southern border. Every contractor I talk to who uses these guys would tell you they would rather have Guatemalans work for them then Mexicans.
Exactly...and the French should give Canada back to the beavers.
Of course if they were logical people, they'd have a different kind of country and economy. Spain invited in the American settlers ---- one reason was they couldn't convince Mexicans to move north into those territories. There were very few people living much north of Mexico City and the southern states.