“Instead, Stoics believed that everything in the universe is already perfect and that things that seem bad or unjust are secretly good underneath.”

The school doesn’t teach that everything’s perfect, but that every circumstance is an opportunity to practice virtue. It’s more akin to “for there is nothing either good or bad, but thinking makes it so” from Shakespeare. That’s different than everything inherently being good.

And “ which can be interpreted to argue that the world and its current power structure are correctly set as they are,” isn’t totally right either, since many statesmen in ancient Rome were Stoics and fought in the political arena. Cato the Younger and his defense against Julius Caesar being one of the more prominent examples.

Nonetheless, good piece. Stoicism does seem to be having a moment, and you’re right to subtly point out that some of the indifference of Stoicism could give shady characters shade to hide behind (I think you did this intentionally), though in the true Stoic form that would be the opposite of virtue.