Live in the city? Killing animals is a reality on a farm.
Agreed. But as others have pointed out, writing about it was an act of political stupidity.
That's an excuse, and a weak one at that. We live in a time when humane euthanasia is extremely widespread even for farm animals. Also you badly miss the point. Noem could have easily taken her dog to a vet to have it euthanized if she thought it was necessary. But she didn't. Instead, she played the tough ranch woman and then bragged about it in a book. What does that say about her character?