Aleksandar Vucic and his big-tent coalition have been in power since 2012, and even if they did manage to steer the economy in the right direction (they didn't), maintain the rule of law, and run the government services efficiently (they don't), or even have the capacity to act civilly (out of the question), in most societies that have parliamentary and presidential elections they would have most likely overstay their welcome after twelve years in office. The Serbian government strengthens its support among the electorate by using physical violence, defamation, lies, and whining. But all this doesn't concern his voting base. To them, such behavior is considered assertive and irreverent, a mark of a strong leader who speaks truth to power and cares about traditional values like Family and Nationhood.