Other ethnic groups are frown upon. Those who speak some Serbian are thrown into complete inclusion. They usually have very small grades. Many of their children do not go to school at all - they are out of system. I am lucky I live in Belgrade, not in some small southern town near Kosovo.
Situation there is like in one of the worst gettos.
Most young educated men and women fled the country during the previous years. Some were against the present socialist regime, some were against any politics Serbian-way. They were able to find jobs in other countries due to their high grades. The IQ of children dropped in recent years due to genetic factors, not to mention social ones. The politicians are against us.