You bring up several good points such as lethal vs non lethal force and escalation of force. Non of us interested in living in a peaceful world seeks out potentially lethal conflict. Also, the psychologic and legal ramifications have been shown to been totally involving of time and resources in the aftermath. In other words, you will be very busy, poor, and unable to sleep for a long time, at best.

I think it is a real challenge for an average, intelligent citizen of the republic to sort out use of force decisions, and even more difficult to train them.

Every good personal protection class I have encountered introduces, and practices: movement, distance, time, and options. A big part of the "problem" in fishing is that we all go fishing in part to connect with our greater natural world, and it is a challenge to maintain a peaceful connection with the challenges of the "outside world." We intentionally limit our options. At least, that is my experience.

Also, regardless of experience and training, it is really hard to be "Sword Cleaves Water" in waders, boots, vest and rain gear, with a rod in hand. More like "Michelin Man Methodically Moves Through Mud."

Wading staff is good, and a pole has some utility, but I don't want to break it. Bright flashlight good. Never underestimate throwing rocks.

It is good to be friends on the water. We all want the fish to be healthy, and we need each other. I think the best and highest right now involves being kind and helpful to each other on the water, and in our lives. Just my opinion.