I can't speak for other ex Yugoslav republics, but Bosnia and Herzegovina is in permanent state od limbo, for 25 years, and probably for the next 25. Corruption is rampant, nationalistic retoric abundant...

One of the main reasons we are a failed state is Dayton peace agreement. It awarded war and genocide. Just imagine post WWII Germany, splitted in two parts, one ruled by ex facists, still denying holocaust, the other part ruled by self serving, corrupt, thieves and bastards (can't say they are better than facists, because all of them got into power and got rich during the war)

The whole region will have half of the population (from year 1991), in just a few decades. Young people/families will never return...