He throws a tantrum, screams, yell, slams his hand against the counter. Throws his toys, tells me he hates me.
It's noise and chaos. It doesn't go ignored, but it also isn't allowed. It isn't a compelling way to get me to give them what they want, unless I'm a bad parent with no direction and structure. Civility, good behavior, that gets noticed positively.
You don't understand the problem, you are emotionally invested in this, which is why you think harming innocent people is an avenue to positive change. You couldn't be more wrong if you tried.
In our system, you protest to raise awareness, to gain positive traction in the public awareness, you then vote and work within the system to enact the real mechanisms of change. When done with compassion, it brings everyone on board to your cause, even if a few bitch and moan about it.
Martin Luther King Jr. knew this. If you think physically harming others and their property, street mob justice, if you think this is an avenue to positive change, you don't understand our system.