Like, TOS, TNG, DS9, the idea isn't that utopia exists without challenges, it's that WE, as a society, face those challenges, and articulate a defense, whether that's against Klingons or moral dilemmas or incorporeal entities . And now we can only imagine someone else violence on our behalf.
Comments
The Lego Movie 2 wasn't perfect, but did well to lampoon the idea that cruelty and violence is what makes a story meaningful.