Sometimes, a story–whether it’s a movie, a book, or an episode of television–is so bad you don’t know where to start. Sometimes it so so bad that you can start at the start and ride it all the way through to the end.
If that wasn’t clear, “Galaxy’s Child” is one of those stories. When the episode literally says the lesson, but then rewards a character for refusing to learn that lesson, your Aesop is broken.
I can’t think of an episode of The Next Generation where the illustrated lesson is more at odds with the actual words people are saying. Sure, some episodes contradict later episodes–“Journey’s End” and Insurrection pitting obedience versus principal, “Sarek” and “All Good Things” confronting aging versus respect, and “The Price” versus literally any episode where Riker is a petulant child because Troi is getting some.
Guernica is the Spanish town where Francisco Franco bombed civilians with German help in 1937, just prior to WWII. Picasso famously painted a mural of it.