Interesting video. I don't get angry at other drivers. Long ago, I realized that their needs are unknown to me. What they do and why they do it really does not affect me. (unless an accident results) .
I simply let people pass if they need to get by. And, I hope they will let me by if they are holding me up.
However, belligerent redneck drunk drivers, are a menace. We have our share around here. They "party" then go around in 4x4's destroying peoples yards, fences and mailboxes, running over their dogs, getting into hit-n-runs and so on. I have zero tolerance for these criminals. I do recognize the difference between outright criminal activity and my fellow (less than courteous) American drivers.
I did have a drunk redneck attack my car at the airshow. I never got out, rolled up the windows and did not intentionally anger him. Heck, I never even called the cops. The guy behind me did. I don't want to be a statistic.
Strangely enough, the guy used to sell Snap On tools locally. I had been on his truck a few times. He was an absolute jerk then too. He stiffed Snap On for all the tools, declared bankruptcy and so on. What a jerk. He did not remember me. Just went road-rage crazy on my car.