Yugoslavia was actually a mix of socialism and capitalism more than anything, and I don't know what else besides ethnic issues you can pin on it. Everyone hated each other, there was no "unity" like in the US. People didn't call themselves yugoslavs, they called themselves croatians, serbs, bosnians etc... and it led to a bunch of conflicts which in the end split it all up. Not really an excuse ¯\_(ツ)_/¯
|