"Nationalism caused two world wars and the Holocaust."
No, internationalism did.
Discussion
The banking cartel did.
Most based thing you've ever posted.
Internationalism: the ideology that promises unity while orchestrating catastrophe
At minimum true for modern nationalism as modern nationalists just want every country to have sovereignty and keep their politics in their own borders.
Forced collectivism did.
Communism, socialism, national socialism, crony socialism ... they're all maggots from the same pile of forced collectivist vomit.
Poor little England and France was just mindin their own business runnin a global empire
Just poor little babies!
The evil behind those and other wars is still with us.