So a daylaborer looking for work is a "hostile invader"?
If he's an Aztlanista, yes.
Even if he's not, Scripture tells us to follow the laws of the land. Crossing into another country in violation of that country's laws contravenes that principle. So no matter how you slice it, they shouldn't be here.
You must not live in Southern California. If you did, there's no way you could fail to have noticed, and been outraged, by the wholesale destruction of American culture here over the last 30 years. Now, either we as a culture have a right to preserve ourselves, or we do not... which is it?