I like a lot of what you said, and I have a few questions.
What is the source of your understanding that O'Sensei intended for people to learn "the principles of aggression?"
You wrote of martial arts possibly as a path to Budo. What do you think is the difference between the two?
Can you explain specifically how you think training the body will lead to skill in dealing with aggression verbally?
I like the metaphor of learning a foriegn language.