Wow, that's...unspeakable. Question for you all: how many of you who grew up with guns in your home ever felt unsafe with the gun in the house? Have any of you ever met somebody who stated that they felt unsafe with a gun in the house, having grown up with them? I'm not talking about someone who married someone who has them. I mean, they actually grew up around them, knew they were there, and felt unsafe. This isn't a rhetorical question- I am genuinely interested in the answer. I don't recall ever having met such a person, but I understand that my experience does not represent reality for everyone else.
My biased opinion is that people who don't grow up around firearms, and who aren't taught proper safety, will fear them because of how guns are portrayed in the media (violent killing machines which will kill you if you touch it). If knives were portrayed as such, and people grew up in homes without knives, they would probably be just as afraid of knives. But people who handle knives on a daily basis have no fear of them.
On the other hand, I do personally know a child who feels SAFER knowing that his father has firearms in the home to protect the family. I sincerely doubt that the producers of that video based it on the feelings or experiences of any child that they've ever met. I think it's contrived, and utterly nonsensical. We would probably save more lives by attempting to instill a fear of spoons into children, so they won't end up obese.