Maybe much ado about nothing, unless they start resorting to guns, bombs, terrorism, guerilla tactics...
I have always understood that the most dangerous threats to the United Sttes of America come not from outside the borders, but from within.
I'm not a racist. Most of the millions of Latinos living in America are hard-working & law-abiding, but all it would take would be a few thousand Latino sympathizers and adherents to that "Aztlan" group, providing money, recruits, guns, explosives, computer-hacking training...
Not a pleasant prospect.
Jacob