It's not that its people are poorly educated, though that's a major issue, actually. It's that a good look at that system shows that pretty much the only education they receive at all is Marxist indoctrination. Combine that with sub-literacy, and the people who are the products of this system are as malleable as clay in the hands of leftist demagogues.
How very convenient for the leftist political parties there that produce such people. And how even more convenient for Democrats up north, waiting to welcome them as they flee.
Please go read just what kind of Marxist shitholes the schools in Central America are, and then realize that the Left in America wants the very same thing for this country.
During a recent teachers strike in this Zapotec Indian town in the poor southern state of Oaxaca, parents who brought in replacement instructors discovered that the children hadn't been taught the words to Mexico's national anthem. Instead, they had been trained to sing a popular leftist song which acts as an unofficial anthem to a local chapter of the teachers union.
"We don't know the words to the Mexican anthem," said Leticia Diego, a student, apologizing to a visitor one recent morning. About a dozen seventh-graders then shyly sang the leftist anthem, "The People United Will Never Be Defeated."
Public Education is a scourge on this earth, a disease that infects whole societies and destroys them from within.