Nightmare Fuel / My Little Pony: A New Generation

• Sprout, for all his cowardice, silliness and ineffectiveness, is a shining example of Realism-Induced Horror. He doesn't have quite the same world-ending stakes as some of the villains from Friendship is Magic or even the 2017 movie, but he still tries to start a race war.
• The mere fact that the citizens of Maretime Bay are so afraid of Pegasi and Unicorns that they willingly rally around Sprout despite his idiocy both counts and crosses over with Tear Jerker. The fact that Sprout was able to convince the Earth Ponies that Hitch and Sunny were brainwashed makes it seem like a miracle that the Earth Ponies eventually left him.
• The coup/revolution in Zephyr Heights after the truth of the royal family's flight is exposed. Hearing your loved one had been arrested and/or declared a fugitive by your own people proved to be a terrifying prospect for both Queen Haven and Pipp Petals, the former fearing for her childrens' safety and the latter freaking out over her entire life falling apart in the span of a single night. This resonates with any parent who fears getting into legal trouble and their children getting dragged into it, and any child who fears losing not only their parents but everything else with barely any idea of what's happening (or just getting into very big trouble with a lot of angry adults).
  Haven: [On Newscast] Pipp, Zipp! Save yourselves!
  Pipp Petals: [Horrified] What?! This is not happening! This is so not happening!
• Bridlewood undergoes a strange ritual to a superstitious jinx whenever someone mentions one of their taboo words (magic, wings, feathers and, for some reason, mayonnaise). Seeing them all freeze up, then dance while chanting "Bing-bong", can be creepy.