RE: Europe's Quid pro Quo

not quite.
"In 212 AD, during the reign of Caracalla, Roman citizenship was granted to all freeborn inhabitants of the empire. But despite this gesture of universality, the Severan dynasty was tumultuous—an emperor's reign was ended routinely by his murder or execution—and, following its collapse, the Roman Empire was engulfed by the Crisis of the Third Century, a period of invasions, civil strife, economic disorder, and plague."
https://en.wikipedia.org/wiki/Roman_Empire#Fall_in_the_West_and_survival_in_the_East

we dont give citizenship to people born in europe, and we routinely send refugees back to countries that are classified safe (even tho countries like afghanistan are not actually safe yet classified safe and syria safe but not classified safe). thats the US. also since US has such lax weapon laws and is a gigantic bundle of states that are united, the "turmoil" seems more likely to happen there.