So this kind of actions where individual people try to take in anger at the policemen as a revenge are not going to change anything within the system apart from increasing the possibility of making things even worse.
What should we do then ? Should we accept the things the way they are and allow the policemen abuse us ?
Unfortunately at the moment this is the case. This is the current system within which the policemen have power and most of the time we have to accept if they abuse this power against us. There are only individual cases when certain people manage to "win" with the policemen and this is because they have access to the resources ( money ) within the current system and they can pay the lawyers to lead the battle in the court or there are people who use violent methods to take the revenge ( e.g. mafia ).
So... we must understand that this is the current system - which by the way was created and designed by each of us - and thus we don't like how it all functions then we would have to redesign and change this system.
At the moment policemen are trained ( like the soldiers ) to obey blindly the orders of their officers and they don't give a fuck about another human being. If they are being told to beat up somebody then they do it. And quite often they do it just because they are angry at their partner or their friend and then they let go out this anger by beating up or giving silly fine to some "innocent" person. I have also heard about the cases when the policemen beat up somebody just because they are bored and they do it for fun. And then it is just a matter of making a story that somebody was aggressive and get his colleagues to confirm it and then the policeman gets away with it.
Then we have the element that the policemen are not properly educated and trained for their job. Sometimes they are employed because there is shortage of staff and then practically anybody can apply and get the job. And this is also very fucked up and creates a lot of "side effects" ( suffering, pain, revenge etc ).
But if you think about it, then you should easily realise that this is not about making the change within the organization of the police itself. As a matter of fact we are talking here about changing the entire system in which we live because everything is interconnected and interdependent on others. So then every single person must also make the change within himself/herself because as I said we are creating this system second by second.
Thus it is not about uniting of people and demonstrating against the police. Because what are we going to do then ? It is cool that we show our disapproval for the abuse but still somebody has to make the change and redesign the system. And we must understand and realise that it is up to us to make the change.
Here is the proposal of a new system ( LIVING INCOME GUARANTEED ), which would make our life easier and better but if we don't do anything to support it and implement it practically in life then nothing is going to change.