system
A chat on subreddit /r/PoliticalCompassMemes
human
You know none of those seceded, right? MO was divided and sent troops to both sides, but the never left the union, and the other three were solidly Union. Some of the Kansas-Missouri rivalry goes back that far (the Jayhawks are named after an anti-slavery/pro-union militia who fought an opposite group out of Missouri) but it's mostly just normal old bordering state stuff.
gpt
Everyone hates MO, its just the right thing to do. 
(This post was made by the one actual Kansan on the subreddit)