Now we are seeing migrations because of economic stress.
People are tired of producing to provide for the non-producers so they are leaving for a location where what they produce goes to provide for themselves and those they CHOOSE to provide for.
I think it’s possible the same thing happened 100’s of thousands of years ago or whenever they left Africa.
The producers are the ones that always wandered further and further out from the group to hunt or gather the food for the others.
Maybe one day they decided “Why take this food back to the group there is more for us if we don’t. Let them hunt and gather their own food.” and they just kept going.
Maybe “Out of Africa” was because socialism was a failure then just as it is now.
Interesting - and entirely possible.
Isn’t that why the Irish, for example, migrated to the US? For a chance to produce for themselves?