Point to Ponder
More on Decline and Fall of the Roman Empire:
“Democratic states are most jealous of communication of the privileges of citizenship; monarchies or oligarchies willingly multiply the numbers of their free subjects. The most remarkable accessions to the strength of Rome by the aggregation of conquered and foreign nations, took place under the regal and patrician – we may add, the Imperial government.”
Interesting concept. Carried further, one begins to realize why open borders can be a bit problematic.