The difference is when Libya collapses into civil war (or 3 governments or whatever) Libyan refugees migrate to other countries that are stable. When China, We

The difference is when Libya collapses into civil war (or 3 governments or whatever) Libyan refugees migrate to other countries that are stable. When China, Western Europe, or the US collapses into civil war refugees from those countries do indeed migrate. The problem is other countries start collapsing as well because they were dependent on some form of trade with those regions. As a result its unlikely there will ever be a large scale exodus of people from the US. We'll all just be survivors in the wasteland at that point.