This is going to be a three way war. On one side the illegal immigrant invaders and their allies on the left. The next side will be the U.S. government. And the third side will be the gun owning population of the United States citizens.
The question of who going to spark it and who's going to shoot who. Because if the Republicans are in control of the federal government when this happens, they may side with the U.S. citizens. But if the democrats are in control, they will side with the illegal invaders, against U.S. citizens.
If it happens, you'll have the invaders led by a Ceaser Chavez type individual, demanding their "rights". You'll have a US government representing global corporations. And, you'll have citizens defending their communties.
We're in science-fiction land here, just hypothesizing. But, it it happens this way, lots of the nation will be lost...unsafe and hospitable only to the underclass. Some cities are getting like that already.