The incidents are nothing different than what the police were doing to Kurdish protesters or Muslim protesters (whom you probably call Islamists) protesting the turban ban across the universities and govt offices and the Kemalist regime's actions against Islam for the sake of secularism for almost 100 years. Erdogan himself knows this better than anyone else. He was thrown into prison just because he read a poem by the Kemalist regime, its laws and its bureaucracy.
Simply put some residents in Istanbul did not want the authorities to destroy Gezi Park and build a mall instead. They were harmless and friendly. Police went brutal and the protests turned into resistance. Police and authorities acted in a more fascist way. They ignored people's right to protest and the anger increased and spread across the country. In my opinion, Erdogan himself should come up, apologize and hold the police and other authorities responsible for their actions and make them answer in front of the law. This is fascism, this is authoritarianism and we do not want it. We've had enough of it.