Going through the court system and avoiding a conviction doesn't mean that a person was held accountable. People need to stop assuming that the US justice system is some perfect system where bad people are put away and good people are freed. Sometimes bad people are freed and good people are put away. That's the nature of our flawed legal system. The notion that he shouldn't be criticized simply because he wasn't convicted is idiotic because the rest of his peers may very well have a different judgment of his actions that the 12 that happened to be picked for jury duty that day.

As far as taking "accountability for protecting other peoples' property", that was not his job nor was it his place to do so. Law enforcement officers are given a mandate by the public to enforce laws and maintain order. Ordinary citizens are not. You don't get to leave the safety of your house with a firearm, escalate a situation by pointing it at people (threatening their lives), and then complain that the people that you're pointing your gun at didn't simply assume that you wouldn't pull the trigger and murder them. People would not have tried to kill him if he wasn't there in the first place and he wasn't threatening to end their lives by pointing his gun at them.

Yes, he did ultimately hold people accountable for trying to kill him, but that's because of a situation he instigated by pointing a gun at them in the first place. Any reasonable person can assume that an ununiformed random asshat who's pointing a gun at other civilians may be interpreted by others as a threat and subject to violence-particular in this day and age where mass shooters are on the news all the time and it's often a split second decision on the part of people attacking them that ends up saving other peoples' lives.

The Second Amendment exists for the protection of this country and our personal protection, not so that you can go play police officer with your gun.