A much more important factor is having an homogeneous society in which people are more inclined to see their fellow citizens as almost being part of their own extended family, and not as oppressors who deserve to be robbed, raped, or killed.
Meanwhile, the video itself seems more concerned with making the case the guns are necessary for citizens to protect themselves from tyranny and their country from any attackers.
Maybe not. But it is fun to go into a restaurant and see people put their guns in the gun rack as they come in. Or lean them against the wall by their table if the gun rack is full.