We learned Facebook can be used by foreign adversaries to influence elections. I think we might be learning that it can also be used to commit what you might call biological warfare.
That moment really broke the movie for me. The Joker is effectively in charge of the butterfly effect. He flaps his wings, and gets what he wants in a "deus ex machina" style way. The odds of timing that so perfectly are astronomical.
You're telling me that a foreign adversary happened to pull this off? "Russia" is becoming a catch all bogey man for everything that we don't understand. There are far simpler answers to how this started to spread.