You've got it. The illegals are saying, "We own your cities, pendejos! Whatcha goin' to do about it, cabron?"
I gotta finish my fictional Aztlan Reconquista novel, before it's "overtaken by events."
You got your Mexican street lingo down pat. All this Aztlan crap means the Indians and semi-Indians (Mestizos) of Mexico feel they have the right to live and work anywhere in North America. And they will invade the United States. They prefer to live here since their stupidity, low morals and chaotic lifestyles ruined their birthplace.