If you're not angry at the guy who randomly cuts across three lanes of traffic because they weren't thinking ahead, you're part of the problem.
Angry people on the road seem to be way more of a problem than any of the other people you listed. Only "intoxicated" seems to have worse results.
So yea, if you're getting angry on the road, gonna second that it you are probably part of the problem. The guy you are getting mad at might also be part of the problem, but that doesn't forgive you actively contributing to it.
In what we is people NOT getting angry part of the problem, anyway? I honestly can't even follow the logic. Do you actually believe that your anger somehow does... something to alleviate the issue... somehow?
My anger motivates me to get away from the source of my anger. I do that through speed, control and focus.
So yes, in my view, my anger does help me alleviate the problem. I don't swerve at people, chase them down or shout at them. I find my spot, slice through it like a laser and put their stupidity behind me in my rear view mirror.
See, what I hate is the assumption that if you're angry behind the wheel, you must be doing the typical road rage thing and endangering everyone around you like a psychopath. That's not how I am. I'm one of the most respectful drivers out there and I hate road rage antics just as much as the next person. I don't cut people off. I don't pull out in front of people because I have a 1.5 second window in which to do so. I don't randomly spike my brakes in rage or shock. I pay attention. And it's
the fact I pay attention while driving that reveals so many shitty driving habits to me. People on their phones. People drifting in and out of their lane. People driving 5 miles under the speed limit so they can maintain an 8 car length gap between them and the next person in the middle of rush hour traffic. People dangerously cutting through traffic because they were too impatient to wait for a safe opportunity, or because they didn't plan ahead and drifted in a turn only lane until the very last second before doing something stupid.
If the rest of the world drove according to the basic standards of the road and kept their minds focused on driving, I would rage about 50% less and what I did rage over would probably be inconsequential and my own fault. When people drive the speed limit, are courteous of other people and mind the rules of the road, I'm copacetic. But that rarely happens. People are in their own la-dee-da-fucking world while driving as though they're not sharing the road with 100 other people who all want to get home.
About the only people I'm not courteous to are those that believe anyone who speeds is endangering the life of every child everywhere for all time. Those people can go jump in the Lake of Fire.
And you want to know what's funny? I just watched a 60+ year old man get t-boned in an intersection right in front of me today while at lunch. Just because you're driving the speed limit doesn't make you a safe driver.