It all started with the grittiest possible reboot of Mary Poppins. Now, whenever you discuss politics, the word "Nazi" gets thrown around a lot. It's usually unfair, but in this case it's unavoidable -- because David and Charles Koch were raised by a literal Nazi nanny. She had emigrated from Germany, where she was very pro-Hitler, and loved to tell fairy tales about naughty children getting tortured. Have you ever seen a congressman on TV arguing to destroy environmental protection and minimum wage and thought, "Jesus, who is funding this madman? Were they raised by Nazis? Were they psychologically tortured every day as a child?"
Yes. Strangely enough, exactly that.
The Koch children were subjected to some truly draconian toilet training: They were expected to poop at the exact same time each morning, or they would suffer castor oil and enema treatments. So yes, it's easy to be upset at the billionaires trying to burn the world down around them right now, but try to be understanding. They had Nazis forcing poop out of them when they were children.
Their nanny returned to Germany in 1940, almost certainly with bags of their feces to give to Hitler's scientists in order to create some kind of money golem. This seems like it would be good news for the children she terrorized, but it meant spending more time with their father. Fred Koch was a big believer in social Darwinism, which meant encouraging the boys to beat the shit out of each other to toughen them up. No matter what boys did in the Koch house, shit was expected to come out of them.