This is your media showing these people, they may not be the norm but they certainly exist don't they? When your politicians ( your representatives) are interviewed on our media they become very defensive about guns and guns laws giving the impression you either live in such a wild place you need weapons with you all the time or you just love the things. Not helpful. Of course we take everything with a pinch of salt, but even the reliable balanced media get a little hysterical when guns are mentioned.
I think that it's pretty well established that, given a choice, the press will go for a sensational story, or slant a story to create the biggest buzz. They aren't going to report on normal, legal, gun owners, because it's not sensational. They are going to find extremists and whack jobs, because that makes it a more sensational story. Is it true? Yes. Is it accurate? No. How do we show we're doing a balanced story? We find the extremists and whack jobs on both sides.