@Snackbar ,
@Trotsky
since both of you mentioned Yugoslavia and Trotsky made a post about it, I can somehow describe a situation in former Yugoslavia cause I was born in it in 1983.
The success of communism in Yugoslavia is a myth, it was never successfull and Yugoslavia was never a land of freedom and equallity and worker's prosperity as some people like to present it.
The most "successful" period of Yugoslavia was 1970-1980. Among the older generations that was deemed as the golden period of Yugoslavia. And it is truth, the fabrics were modernised, hospitals and roads were built and life was solid.
The industry was pretty big but only domesticaly. Some companies like Koncar, Gorenje and Prvomajska participated on foreign markets but not nearly enough to be sustainable on their own.
The truth is, all of that was financed with the loans from MMF and western countries. And those loans were huge and the foreign debt was growing bigger from year to year.
In early 1980's, after death of yugoslav dictator Tito, the foreign debt was so huge that Yugoslavia wasn't able to pay it's loans anymore. The result of that was that there wasn't any money to run the country. As there wasn't any money left, there was lack of some ordinary goods like rice, soap, sugar, coffee and similar. The lines were being organized just to buy the most ordinary bread. And even though that Yugoslavian industry could produce some of those goods, there wasn't enough money to buy and import the raw materials for it. As a result, Yugoslavia decided to print large amounts of money which led to hyperinflation.
The Yugoslavia went on decline until the late 80's and early 90's when it finally falled apart but that is the story for another topic.
And now time for some quotes and notes.
Influence and participation of worker organizations in work and politics of the companies were nothing but an ilusion. The companies and the whole industry were completely owned and controlled by the government.
Every company had the directors, bosses and lower staff that were in control.
The only influence that worker's sindycates had was that they could've choose the directors and staff, but the thing is, every candidate for those positions was nominanted by the communist party. With that said, the membership in communist party wasn't mandatory. Yet, if you wanted to advance as the worker, you had to be a member of the communist party. You wanted to be a manager in your factory unit you had to be member of the communist party. Same goes for bosses and the directors but they had to be a higher in hierarchy. If you weren't a communist, you knew that you will have to spend your intire lifetime as the ordinary worker with the lowest salary without any possibility to advance in your carrer.
And of course, salary gap between workers and staff in charge was huge. Even between the workers in the same workplaces, if some of them were members of the communist party they had the bigger salaries.
It was same in every part of society, the communists were living in the bigger houses, to many of them the government even gifted the apartments, they were driving the better cars (imported from those evil capitalist countries like Germany for example) and they had connections in every structure. The regular folks had just enough not to be homeless or hungry.
Freedom of speech was non existent, the media, culture, music and literature were controlled and censored by the communist party.
f you had balls to publicly criticise communism and socialism, there was a high possibility of being declared as the enemy of the regime. Those who were declared as the enemies of the regime were imprisoned ( yup, imprisoned for verbal delict ) or sentenced with the heavy phisical work in labor camp.
And just to mention Josip Broz Tito, the Yugoslav dictator. He was the leader of yugoslav resistance movement in WW2. Under his leadership, Yugoslavia was freed from the german and italian occupation. After the end of WW2 he became the head of the communist party. Later he declared himself as the lifelong president of Yugoslavia. Like every true communist leader he enjoyed luxury and high lifestyle. He owned villas, cars, yachts and the boat, he was spending summers on the Island of Brijuni with his own private zoo park. He enjoyed expensive whiskey and cigars. Of course, all of that was financed by the state but hey, he wasn't the owner cause after all, all of that was owned by the people ( yep, on the paper, everything in Yugoslavia was owned by it's people, I just don't remember that those people had any benfit of all of that luxury ).
In short, communism in Yugoslavia wasn't doomed because of tribalism, it was doomed because it was the unsustainable system, built on the fairytales and lies about unity and equality, without any future.
And yes, forgive me for my bad writing and if any sentences looks weird and grammatically wrong, I haven't slept in 2 days and I can barely see letters on my keyboard.