I’ve seen them in videos of their attacks. They’re weak. They’re not well rooted (not balanced, not stable, feet too close together). They swing like girls, often with their eyes closed.
It would take years for them to appreciably improve, if they were capable of trying to properly do so, But spoiled bullies tend to avoid the necessary dedication to the needed kinds of effort and routines, and they drop out.
For those who want to learn more about self-defense against attacks,... Along with whatever plans one might have for training with firearms, also train with psychological tactics, getting evidence (e.g., cameras), less lethal weapons, etc. Find new ideas. Develop strategies.
Remember, though, that your best weapon is your brain. Another good one is your feet. In some circumstances, run!
And if things ever really get life threatening with nothing waiting in a holster at the time for whatever reason and no time to run...necks...necks are weak. Head...grab the head, then wall, post or whatever. Catch my drift? If unarmed and attacked by someone who is armed, then guard with arm, stomp on instep or knee, fingers to eyes, throat, etc.—*all same time.* Then run!
I also learned to put my set of keys between each finger (like pointed brass knuckles) make a fist, and go for the eyes.