Never argue with an idiot. They will just drag you down to there level and beat you up with there experience. Never point out the error or limit in the argument with an Idiot, There is no win possible.
The internet has given everyone the ability to be heard in public, and some of the loud have big platforms.
To change society, we need a method of getting the message out, and a message that is workable. To make a huge course correction violent over through of the government is the only way, and are the conditions that bad? No. It needs tweaking, likely but what should be the tweak? In the US, the cops are shooting anyone who does anything that the skittish cops can construe as threatening. Oh well, in the end we all die anyway. It is the cops point of view that must be considered as they are the one with the guns, at least some of the time.
There are always loose lip radicals that can scream and say nothing useful. Oh well, idiots also die. It does not matter. Unless someone comes up with practical small changes, nothing will change. What is needed is a public information campaign to teach the public how to deal with armed police in a safe manner. It is the public that is at risk, and the silence is not helping in the US especially.
Police use the principal of escalating force until success can be expected. You offer anything that could be considered deadly force and you get shot. It is that simple. Cops do not back down, especially scared skittish cops. Calgary, this guy is lucky to be alive. http://www.huffingtonpost.ca/2016/07/10/calgary-police-video-arrest_n_10915586.html