Canada

In fact, you're FAR more likely to be killed by or to kill someone you love if you have a gun than you are to be killed by a stranger.

I'm pretty sure that's the case everywhere that has guns. Statistically, there's way more occurrences where there's a potential for death with people you're around all the time. Plus, there are a lot of boneheaded people in the world.

But to your original point, a burglar, or intruder, or stalker, or whatever, doesn't need to have a gun to make it a good idea for you to have a gun. Why would you want to meet someone who's invading your house on equal footing? The idea is to have overwhelming odds on your side so that you can come out of the situation unscathed. Nobody's going to see an intruder with a knife and go "oops, he only has a knife, so I better put my baseball bat down and grab my pocket knife!". That's just silly movie machismo stuff. You want as much advantage as you can get.

It's highly unlikely that most people will ever encounter any scenario like that. That's true. But that doesn't make it a bad idea to be prepared. As unlikely as it is, I know someone who suffered a home invasion in her 2nd floor apartment in a gated community, in the nice part of town. The burglars climbed her balcony, and threw her BBQ through the sliding glass door while she was sitting on the couch. Then they forced her onto the ground and made her sit cross-legged with her face between her knees while they stole everything of value that she owned. Would a gun have helped her? Maybe not. Idk. But the point of owning a gun for self defense, or home defense, or whatever, is to be prepared for the times when it would help you. Not everyone who owns a gun is a crazy gun person who makes it their whole identity. Some people just want to be prepared, and some people just enjoy the sport of marksmanship.