I think your 2) can easily be misconstrued to mean something else. At least, "want/desire" does not logically follow from migration stats. There are way more important factors that affect this metric.

Not to mention that a generally poor population are stuck in the US, while for the upper income brackets actually have it OK in the US. While in Scandinavia, almost everyone has the means to travel the world. Even store clerks, or otherwise "minimum income workers".