Earlier quoted context omitted.
Then how is it our species has colonized most of the planet. Surely their is an intense, universal, drive to migrate.
The people are migrate are the members of the lower class who are exiled by law or economics or racism.
Read Albion's Seed -- the Borderers/Scotch-Irish were poor and exiled, following the model you describe, but the Cavaliers were both downwardly-mobile and eager to create ideological utopias, and the Puritans and Quakers were just looking for places to build utopia -- they were doing well enough economically back in England.