Foreigners! They're a threat to our way of life. They enter our country illegally and they launch suicide attacks. They threaten our jobs. Some of them don't speak English, and many of the men have facial hair (unhygeinice, primitive, and disgusting!). They hate people who aren't like them and who don't share their cultural values. Such people simply cannot be tolerated. We should find a way of getting rid of all such people ASAP...preferably a way that causes us as little inconvenience and unpleasantness as possible.

Long range high tech weapons are clearly the way to go on this. Either that or genetic or biological warfare of some kind. What you don't see and don't hear because it happens too far away can't inconvenience you, right?

Then too, we could just build a giant dome around US, the good people, and shut the rest of the world out forever, along with all those nasty bugs, animals, plants, bad weather, and bad smells...but...that would mean that we might miss out on something the rest of the world could still offer us which we could then make more money on.

That would not be good. To not exploit the exploitable when it's sitting out there in plain sight just waiting to be exploited would be unpatriotic and in denial of our highest and most noble purpose: an ever-expanding economy.

So let's just kill them all. The bad people, I mean. You know, the ones who aren't like us?