You think arguing with anti-gunners is frustrating. Do you realize the frustration they face arguing with pro-gunners?
Both sides claim to be right.
Both sides claim to want to do what is best for people.
Both sides think the stance of the other side is a safety concern.
Both sides are HUGELY prone to arguments of emotion.
Both sides are prone to misrepresenting data.
Both sides cherry pick data to argue.
Both sides think the other side is composed of illogical individuals.
We blame the media. They blame the NRA.
Both sides call what the other side is doing with educating children to our views as "indoctrination."
Both sides, this thread included, are prone to ad hominem attacks.
The list could be extended quite a bit. The point is, both sides believe in their causes and assign different levels of value to different types of information as being relevant. As James noted, the person he was arguing with wasn't unintelligent. He seemed surprised by this, but the truth of the matter is that there are indeed geniuses and mentally challenged people on both sides of the gun issue. So this implication that it is a matter of intelligence (as also indicated by the ad hominem comments) is silly. It is a matter of values, and emotions are a big part of a person's values.
So arguing with a person or group that holds a different set of values than you will undoubtedly be infuriating, if you let it get the better of you. Infuriation is an emotional reaction.