Pls expand on your comment....
In particular if you have examples of successful long term empires built on ethnic diversity, please provide.... In other threads we have a poster from Africa arguing that the issue of most african states is that they have ethnic diversity which creates massive governance issues with the results we know. He has a goood point
People say the Austro-Hungarian Empire was going to inevitably collapse due to diversity and different ethnic groups.Just not true. It was not a "powder keg". It was the last state where identity was determined by ruler not ethnicity or nationality, a hard concept for people to generally understand today though it was the norm for much of European history.
The assassination of Franz Ferdinand was caused in relation to Bosnia which was acquired a few years earlier. Bohemia had hated their Hapsburg masters since the Reformation and had started the Thirty Years War by tossing Hapsburg reps out the window. 300 years had passed since then. Hungary had issues but were appeased with the dual monarchy and the Hapsburgs were so popular they remained a monarch without a monarch for political reasons(bizzare setup they had). Croatia and Slovakia had been part of Hungary for 1000 years, Slovenia part of Austria for centuries with the ones given the choice to vote mostly voting to remain in Austria. Poland greatly preferred the Catholic Austrians to the Orthodox Russians and Protestant Germans. Sure they preferred a nation of their own to all three but they weren't angry before that became an option after WWI.
Transylvania was a mess because of the weird way the religious demographics were geographically distributed. It was basically nation states within a diverse larger area. Looked like poka dots on a map.