This is exactly what many gun enthusiasts I know want. At least in principal. When a government (the cops being part of that) oppresses you, you are able to fight back against their tyranny using your guns. The flip side being that many of them are racist too and they don't mean black people defending themselves.
The black people are saying enough is enough. Stop shooting us. Which does happen disproportionately to black people. Look at Trayvon Martin. A kid playing with a toy gun. The cops rode up and shot him within seconds. Didn't pull further away. Observe. Ask him to drop the gun, whatever. Just rode up and shot him dead. In an open carry state.
And even though black people are more often the victims, it's other races too. Even white people. Recently we saw a video of a copy arresting a white kid and tazing him for no apparent reason and then throwing him face first into the pavement causing brain damage.
Most cops are probably good people. But many are flat-out assholes. It's the same people that work security jobs. And I worked a few of those. Some of them are there to prove their manliness. If you talk back. If you demand your rights, you're not perceiving them as your master. So you're going to suffer. These cops think they're in a war zone and have to treat everybody as if they're about to kill them. No. Be cautious, but don't always react with deadly force.
I saw a woman. I think it was a teen - at a police station no less - with a knife threatening cops. They shot her dead. Really? Big strong group of cops. You pussies couldn't disarm a woman with a knife. You had to kill her? Not even taze her? What a group of fearful pussies.
You go into police work, you know their are risks. Take some of them instead of shooting first. I saw a video where a hispanic man dropped his arm a little (surrounded by police) and they said he was reaching for a gun and shot him dead.
The police are out of control. And they often get off because the system doesn't truly investigate it or gives cops the benefit of the doubt. It's time to realize that cops can be the criminals too. Some of them way worse than the people we lock up.
Killing cops is not the answer. At least not in Dallas. There have been some bad cases in Dallas, but the 2 that sparked it weren't here. They weren't to blame. Don't shoot any old cop just because some are bad. But I understand your frustration.
Listen to these people with Black Lives Matter and stop trying to diffuse them with the "all lives matter" BS. Of course all lives matter, but the numbers show that black lives matter less to police.
Oh and my answer, work on better training for cops that avoid this notion that they should be so fearful and shoot first.