In my own country, a former communist country in Eastern Europe, there were last year some anti-government protests that ended one night with the police gratuitously shooting tear gas at the crowd. This caused widespread outrage and was universally covered in the press. They didn't dare do it on subsequent protest nights again, and it remained a subject of discussion for months, with almost no defense even from the more government-friendly news outlets.
Dr. King advocated non-violent, economic, protest on 3.4.1968 https://news.ycombinator.com/item?id=23414101 On 4.4.1968 they showed him the violence inherent in the system.
Do you have any good anti-authority songs in your country? I've been trying to think of what might be good ones in the US tradition.
In the shadow of the steeple I saw my people,
By the relief office I seen my people;
As they stood there hungry, I stood there asking
Is this land made for you and me?
It goes something like this (in a somewhat word for word translation, and keeping in mind that the big bad at the time were leaders of the former communist party):
Better a vagrant,
Than a traitor,
Better a hooligan,
Than a dictator,
Better a hoodlum,
Than a party activist,
Better dead,
Then a communist