Arthur Fleck is not a strong man. He shares the same mentality as most high-profile serial killers and school shooters: weakness. People like this may agree with me that the world is horrible and unfair, but they crumble under the pressure of these thoughts. They get lost in the despair and hopelessness of this notion. For some reason, all of these people one day decide that they should take on the role of God, casting judgment and sentencing. They should deliver justice with their own hands. They are responsible for punishing those that caused their despair. They decide that you get what you deserve. What a terrifying thought.
Quit taking daily gym selfies. Quit posting shameless topless photos of yourself in your bathroom. Quit helping the girl at the gym that obviously doesn't want or need your help. Quit leering at her too. Quit training like an insecure frat boy.
The tale of Icarus and his wings of wax is one of the more famous classical myths. It tells of a talented Athenian craftsman named Daedalus who was trapped on the island of Crete with his son Icarus. Daedalus, you see, had built an unsolvable labyrinth to contain a beast called the Minotaur for the King of Crete near the King's palace in Knossos. When the King imprisoned the great hero Theseus in the Labyrinth to be killed by the Minotaur, Daedalus helped Theseus escape by giving him a special spool of string. For this, Daedalus and his son Icarus were themselves imprisoned within the Labyrinth.