That is indeed a problem , but there are enough Blacks , Whites , and Native Americans in the major cities , not to mention all the tribes on the reservations that wont take kindly to any attempt to take over OUR country or land . Things are the way they are now because of politics , and the fact that everybody is fairly comfortable in their lives ( they have enough food , they can get things at a store easily , etc. ) but if the shooting starts , I do feel the Mexicans will loose . The tribes absolutely wont stand for it , and they know their land better than any other . If you look at a map of Arizona , and how much of the land is Indian Reservation , it might surprise you .