Because when you find a button that works you keep pressing it, it's an infantile tactic but there you go. Writ large the lever was being pressed by controllers, and they took advantage by pressing the button.
Nope. look at the demographics and each decade, aligning with it look at the extremist movements and what they most extreme gets away with.
What concept are you having trouble parsing?
What they think: You Will Eat the Bugs by ELIMINATION of all other options.