Outsiders play the role of handy, yet misleading surrogates for the most divisive contentions between insiders. What we like or dislike about outsiders is usually a safe indicator of what we like or dislike about ourselves.
In Norway, Anders Breivik appeared to get this, for instead of targeting the intruders, he targeted those who be believed would show them favour.
A significant threat to our globalised capitalist societies today comes less from the way human beings are attempting to roam as freely as commodities, and more from our collective response to this phenomenon.