@plainoldme,
A century ago, it was German Protestants and Irish Catholics, now, it is Mexicans. Hey, if the Mexicans are stopped, who will mow your lawns and flip your burgers?
The American right always finds someone to hate, someone to target.
The irony is that humans are always on the move. Shortly after modern humans appeared in Africa, they left! Walked along the coasts of Asia Minor, across what would become the Silk Road and down into India and from there to Australia while others went in the opposite direction, eventually populating the world with humans.
Of course, the ancestors of Rockhead, Finn and David had to have come from somewhere. Could they have been immigrants?