'Killed her 14 month old dog for misbehaving' is the clicky headline. But the subtext is, this person might be the republican running mate, and her story is presented as a parable about how killing is 'a job that needs to be done'. It's not crazy to put those pieces together and be anxious about the direction they point in.
I can see where you're coming from. You're right that her story is divisive. I think that's the objective. It's an engineered, populist, fascist move to present the story in the way that she does. No one in the public eye writes that kind of thing in a book and expects it to fly under the radar.
You're also right that there's a strong rural/urban ideological division. Best way to fix that I think is to talk to each other more, IRL, and try to honestly understand the perspectives of others, especially if they're different from our own. My 2¢.
To all the people in this thread saying this was probably an accident:
Imagine you're an operator inside a totalitarian regime, and you want someone assassinated. Maybe this person isn't themself a critical target, your objective is to instill fear in a particular department to increase compliance on a morally abhorrent skunkworks project. You already know everything about this person, of course including details of their personal life and hobbies. Hey they're a mushroom hunter. Mycotoxins are readily available and can be lethal in small, undetectable doses. Not difficult to figure out what happens from there. Everyone who knows Vitaly knows, hey he wouldn't pick and eat a poisonous mushroom. The message is sent to the people who you want to hear it.