Human beings were always predetermined to destroy itself. NOT predestined, but predetermined. You know what was human-kinds' downfall from the beginning? The first moments that they developed consciousness and self-awareness. That was our undoing from the start. Sure, it was a great blessing(only for us), in the beginning. But it also drew up the blueprints of our self-destruction.
Metal DID have the potential to undo the mistakes of the past. Like you said. A revolution. BUT LIKE EVERY GOOD IDEA, GOOD PRINCIPLE IN HISTORY(ancient and modern) THAT WAS THOUGHT UP IT WAS COMPLETELY AND UTTERLY RUINED BY HUMAN NATURE( that's where it is counter-revolutionary). That SAME, SAD two-sided story to everything where people act as a team, a mass, a whole but really only caring about themselves as individuals. They develop a mass unity with lots of the same people who think the same, develop brotherhood, eliminating the feeling of uncertainty, insecurity, finding identity, being blinded by romantism, etc, however, deep down inside in their hearts, they are selfish. Self-absorbed. Self-indulging. They do only what suits THEMSELVES and NOT what suits the world.
Termite society works. Ant society works. Bee society works you know why? Because there is NO consciousness behind the work they do. It is just pure, primordial instinct that drives them to excel. No thought, no emotion, no self-awareness and STILL they achieve great things as a society because they just DO. NO thinking. NO feeling. Just DO.
If metal is to succeed, we NEED to start being like termites, ants and bees(I know that sounds funny, stupid even). It needs ALL its members to just relax, calm down, stop thinking about their own preferences, their own thoughts and likes, and/or dis-likes and start just devoting themselves to each other and the common cause. BUT they WON'T. WHY? Human nature.