But I was thinking of the Turks. Various Byzantine nobles kept importing Turkish mercenaries to fight their wars with each other and to work their land. By the time the Turks rolled up to Constantinople with their cannons, the countryside was already filled with Turks. Ultimately, there weren't enough Byzantines left to fight the Turks or hold on to their territory so they vanished to the conquerers, despite their wealth and long history of achievements.
Good historical point. Seems like the outsourcing trap has a long and illustrious pedigree. The Romans and the Goths...
The Globalists never square their dreams of world governmental institutions with the facts of history.