The vast majority of Mexicans are indigenous native Indian in heritage, who have been treated like 2nd class chattle since the conquering European Spaniards came over in the late 14??'s. Many/most of these Spaniards and the remaining ruling Spanish families still appear as white skinned and even blond-haired as any German who settled Texas.
It's not hard to see how those continuing racist attitudes, along with the bullying point-of-the-gun control over the lives of the oppressed darker-skinned peasant masses, easily transfers such deep resentment and hateful feelings of the oppressed, toward the European light-skinned neighbors to the north.
Take a peek at Univision sometime ... you'll never see a dark skinned person in charge of anything except his donkey, or sitting gap-toothed in an audience, dressed in stereotypical poor peasant style.
Mexico is a totally racist, military controled PIT, run throughout by corruption ... with magnificent beaches.
A. better patrol of the border on our side and
B. cleaning up the political scene in Mexico.
Unfortunately, the Mexicans have nothing to gain by cleaning up their house.