I did not do any of the things you list.
I did not say you made any initial traitors comment. I did not say you singled out anyone specifically. I did not shout anyone down (I wanted to get the person in question to debate me. I really don't want to re-open the YOU MADE MY GARY LEAVE/I DIDN'T WANT GARY TO LEAVE sillyness. You've already written thousands of words defining and re-defining your position, and I'm quite at my consumption limit.
When Gary characterized his friends as "scumbags here in the habitableZone preaching treason against the United States", you certainly did, as you say, find definitions of the word "treason" that might make his statement accurate. I think that could be called a defense, don't you?