I believe we are capable of good, all of us.
Surely we have proved it.
But just as we are capable of good, that being a definition can be translated to the fact that we are capable of evil. And of course we have proved that as well.
But my opinion is slightly altered. We were made capable of good, but the world taught us to let go of that. From that point, evil was built... as we tested the boundaries of how much we could let go. A test that is, sadly... still ongoing. This is why the world is burning to the ground. We are losing our instinct to what is taught as the 'truth' in this world. An ugly 'truth'. A falsified 'truth'.
But that good that we are capable of is not one to be defeated. Time and again, it has achieved miracles in the darkest of darks. The fight is not lost. The only question is: Will you fight?