If I ever have kids, they get martial arts training. From someone who emphasizes self-awareness and a productive discipline, but who does not skimp on the full range of effective techniques and the physical training to achieve them.

They may like it more or less. Regardless, it will be a part of their schooling.

Bullying ends when you end it. There may be more than one way to accomplish this, but when you're outnumbered and out of reach of any help, you need to be able to manage the physical situation. (This does not necessarily mean the ability to defeat an arbitrary number of opponents; it also means being able to reason ways to extricate oneself, etc.)

And, sooner or later, you'll be there. This is true throughout society and throughout its various situations; cooperation is limited, and you're going to end up facing difficult situations on your own. "Civility" is a luxury that is not always available.

Being persistently without control can become a self-fulfilling situation. Those neural pathways get burned in -- just as they do with everything else we learn particularly through repeated experience.

I don't want my kids to be placed psychologically in that corner. I also don't want them to place other in that corner, which is why the physical aspects are not sufficient.

P.S. I've also learned that some physical injuries can be irreversible. It doesn't do you much good to know that a bully will eventually "go away" or "one day learn", if in the meantime you have permanent scars and worse to deal with.