...This person's Shihan should be informed and be allowed the opportunity to begin a discussion with this instructor....... History tends to repeat itself, unless you and the other deshi have the courage to become part of the braking process.
Unfortunately, his Shihan has passed away recently. And that was the only person he would listen to...
His previous deshi is quite open about it with the other students. But he never acknowledges his mistakes and never listens to advice given by people that are younger than him. It absolutely pointless to argue with him or rationalize, or present a different point of view. I've come to believe that people don't change because someone told them to. They only change if they want to change, and this man is most resistant to change.
I don't know... I could write to the federation, but I don't want to be a bitch and cause problems for his dojo. "How people treat you is their karma, how you react is yours". Besides, who will they listen to? A college kid or an old, respectable Sensei?