I really don't condone violence but if you show up to a rally for the purpose of pissing people off to the point where some nice 78 year old man loses control then you have it coming. I can go up to someone and say all sorts of things with the goal of getting them to punch me in the face. I can then claim to be the victim in the whole thing. Would that seem fair?
BTW, self-defense laws do not apply to situations where you create the situation in the first place.
I hope that this guy knows that his line of reasoning is exactly the same as:
"She dressed that way, therefore she deserved to be raped."
Now, if you, SuperDemocrat, are a fan of raping women based on how they dress...then, I certainly don't agree with that, but at least you keep your line of reasoning the same.
However, if you see a problem with raping women based on how they dress...then perhaps you can see a problem with sucker punching somebody based off of the fact that you don't like them.