You think the illegal aliens will start a civil war between the legal citizens? If so, that's an urgent reason to get rid of them, pronto.
Or did you mean the illegal invaders would start a war with the legal citizens? If thats true, we should fight them now before they get any stronger.
I'm not sure, just what did you mean?
I meant that attempted deportation would cause a civil war between American guest workers and their supporters on one side and those attempting to expel them from their homes on the other.