This is almost certainly false and meant to demonize North Korean people. Just because you’re under a dictator doesn’t mean you’re immoral or a bad person. I know this doesn’t explicitly call them that, but the implication of someone eating an animal that is commonly kept as a pet in the US is that they’re “barbaric” or “lesser than”. That being said, dog meat is probably more expensive than several other meats, so it’s probably false anyway.